./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.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 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:19:07,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:19:07,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:19:08,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:19:08,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:19:08,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:19:08,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:19:08,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:19:08,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:19:08,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:19:08,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:19:08,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:19:08,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:19:08,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:19:08,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:19:08,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:19:08,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:19:08,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:19:08,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:19:08,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:19:08,033 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:19:08,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:19:08,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:19:08,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:19:08,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:19:08,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:19:08,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:19:08,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:19:08,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:19:08,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:19:08,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:19:08,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:19:08,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:19:08,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:19:08,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:19:08,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:19:08,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:19:08,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:19:08,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:19:08,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:19:08,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:19:08,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:19:08,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:19:08,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:19:08,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:19:08,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:19:08,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:19:08,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:19:08,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:19:08,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:19:08,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:19:08,077 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:19:08,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:19:08,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:19:08,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:19:08,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:19:08,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:19:08,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:19:08,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:19:08,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:19:08,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:19:08,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:19:08,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:19:08,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:19:08,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:19:08,081 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:19:08,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:19:08,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:19:08,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2022-07-12 15:19:08,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:19:08,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:19:08,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:19:08,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:19:08,275 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:19:08,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-07-12 15:19:08,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4838c5f50/378571b147fe45a4af6ae0b4da1e3ebe/FLAGec1f5c560 [2022-07-12 15:19:08,922 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:19:08,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-07-12 15:19:08,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4838c5f50/378571b147fe45a4af6ae0b4da1e3ebe/FLAGec1f5c560 [2022-07-12 15:19:09,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4838c5f50/378571b147fe45a4af6ae0b4da1e3ebe [2022-07-12 15:19:09,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:19:09,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:19:09,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:19:09,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:19:09,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:19:09,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:09" (1/1) ... [2022-07-12 15:19:09,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee7b2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:09, skipping insertion in model container [2022-07-12 15:19:09,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:09" (1/1) ... [2022-07-12 15:19:09,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:19:09,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:19:11,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-07-12 15:19:11,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-07-12 15:19:11,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-07-12 15:19:11,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-07-12 15:19:11,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:11,514 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:19:11,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-07-12 15:19:11,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-07-12 15:19:11,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-07-12 15:19:11,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-07-12 15:19:11,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:11,877 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:19:11,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11 WrapperNode [2022-07-12 15:19:11,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:19:11,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:19:11,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:19:11,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:19:11,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:11,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,121 INFO L137 Inliner]: procedures = 451, calls = 2016, calls flagged for inlining = 220, calls inlined = 194, statements flattened = 4695 [2022-07-12 15:19:12,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:19:12,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:19:12,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:19:12,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:19:12,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:19:12,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:19:12,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:19:12,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:19:12,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (1/1) ... [2022-07-12 15:19:12,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:19:12,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:19:12,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:19:12,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:19:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 15:19:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 15:19:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:19:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:19:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:19:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:19:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2022-07-12 15:19:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2022-07-12 15:19:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:19:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:19:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:19:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:19:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:19:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:19:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:19:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:19:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:19:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:19:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 15:19:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 15:19:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 15:19:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 15:19:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-07-12 15:19:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-07-12 15:19:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:19:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:19:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 15:19:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 15:19:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 15:19:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:19:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:19:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:19:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:19:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:19:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:19:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:19:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:19:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:19:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:19:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:19:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:19:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 15:19:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 15:19:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:19:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:19:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:19:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:19:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:19:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:19:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:19:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:19:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 15:19:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 15:19:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:19:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:19:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:19:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2022-07-12 15:19:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2022-07-12 15:19:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:19:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 15:19:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 15:19:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:19:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:19:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:19:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:19:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:19:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:19:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:19:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:19:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:19:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:19:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:19:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:19:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:19:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:19:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2022-07-12 15:19:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2022-07-12 15:19:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-07-12 15:19:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-07-12 15:19:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:19:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:19:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:19:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:19:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:19:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:19:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:19:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:19:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-07-12 15:19:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-07-12 15:19:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:19:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:19:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:19:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:19:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:19:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-12 15:19:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-12 15:19:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:19:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:19:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2022-07-12 15:19:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2022-07-12 15:19:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-12 15:19:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-12 15:19:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:19:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:19:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:19:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:19:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-12 15:19:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-12 15:19:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:19:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:19:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2022-07-12 15:19:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2022-07-12 15:19:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:19:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:19:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:19:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:19:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-07-12 15:19:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-07-12 15:19:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 15:19:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 15:19:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 15:19:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 15:19:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:19:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:19:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:19:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:19:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:19:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:19:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:19:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:19:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2022-07-12 15:19:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2022-07-12 15:19:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:19:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-07-12 15:19:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:19:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:19:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:19:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:19:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:19:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 15:19:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 15:19:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:19:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:19:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:19:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-07-12 15:19:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-07-12 15:19:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2022-07-12 15:19:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:19:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2022-07-12 15:19:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 15:19:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:19:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:19:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:19:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:19:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:19:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:19:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:19:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:19:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:19:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:19:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:19:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2022-07-12 15:19:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2022-07-12 15:19:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:19:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:19:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:19:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:19:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:19:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 15:19:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 15:19:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2022-07-12 15:19:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2022-07-12 15:19:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:19:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:19:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 15:19:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 15:19:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:19:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:19:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:19:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2022-07-12 15:19:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2022-07-12 15:19:13,038 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:19:13,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:19:13,382 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:19:15,207 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:19:15,257 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:19:15,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:19:15,269 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 15:19:15,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:15 BoogieIcfgContainer [2022-07-12 15:19:15,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:19:15,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:19:15,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:19:15,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:19:15,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:19:09" (1/3) ... [2022-07-12 15:19:15,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39856615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:15, skipping insertion in model container [2022-07-12 15:19:15,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:11" (2/3) ... [2022-07-12 15:19:15,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39856615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:15, skipping insertion in model container [2022-07-12 15:19:15,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:15" (3/3) ... [2022-07-12 15:19:15,278 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-07-12 15:19:15,288 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:19:15,289 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:19:15,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:19:15,354 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d371b3a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3931097c [2022-07-12 15:19:15,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:19:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 1716 states, 1186 states have (on average 1.3010118043844856) internal successors, (1543), 1220 states have internal predecessors, (1543), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) [2022-07-12 15:19:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 15:19:15,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:15,391 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:15,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:15,396 INFO L85 PathProgramCache]: Analyzing trace with hash 314341586, now seen corresponding path program 1 times [2022-07-12 15:19:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:15,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941942624] [2022-07-12 15:19:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:15,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:15,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:19:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:19:16,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:16,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941942624] [2022-07-12 15:19:16,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941942624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:16,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:16,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31264298] [2022-07-12 15:19:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:16,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:19:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:16,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:19:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:19:16,117 INFO L87 Difference]: Start difference. First operand has 1716 states, 1186 states have (on average 1.3010118043844856) internal successors, (1543), 1220 states have internal predecessors, (1543), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:19:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:18,925 INFO L93 Difference]: Finished difference Result 5035 states and 7251 transitions. [2022-07-12 15:19:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-07-12 15:19:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:18,952 INFO L225 Difference]: With dead ends: 5035 [2022-07-12 15:19:18,953 INFO L226 Difference]: Without dead ends: 3332 [2022-07-12 15:19:18,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:18,967 INFO L413 NwaCegarLoop]: 2603 mSDtfsCounter, 2683 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 5128 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:18,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 5128 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 15:19:18,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2022-07-12 15:19:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3300. [2022-07-12 15:19:19,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2301 states have (on average 1.2759669708822252) internal successors, (2936), 2368 states have internal predecessors, (2936), 828 states have call successors, (828), 169 states have call predecessors, (828), 168 states have return successors, (824), 814 states have call predecessors, (824), 824 states have call successors, (824) [2022-07-12 15:19:19,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4588 transitions. [2022-07-12 15:19:19,159 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4588 transitions. Word has length 127 [2022-07-12 15:19:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:19,160 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4588 transitions. [2022-07-12 15:19:19,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:19:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4588 transitions. [2022-07-12 15:19:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-12 15:19:19,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:19,163 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:19,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:19:19,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2030801047, now seen corresponding path program 1 times [2022-07-12 15:19:19,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:19,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420512670] [2022-07-12 15:19:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:19:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:19:19,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:19,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420512670] [2022-07-12 15:19:19,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420512670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:19,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:19,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:19,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118233406] [2022-07-12 15:19:19,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:19,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:19:19,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:19,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:19:19,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:19:19,440 INFO L87 Difference]: Start difference. First operand 3300 states and 4588 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:19:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:21,970 INFO L93 Difference]: Finished difference Result 9372 states and 13067 transitions. [2022-07-12 15:19:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2022-07-12 15:19:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:22,000 INFO L225 Difference]: With dead ends: 9372 [2022-07-12 15:19:22,001 INFO L226 Difference]: Without dead ends: 6095 [2022-07-12 15:19:22,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:22,015 INFO L413 NwaCegarLoop]: 2554 mSDtfsCounter, 2353 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 1083 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1083 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:22,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 5037 Invalid, 2845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1083 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 15:19:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-07-12 15:19:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 6013. [2022-07-12 15:19:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 4176 states have (on average 1.2775383141762453) internal successors, (5335), 4304 states have internal predecessors, (5335), 1515 states have call successors, (1515), 320 states have call predecessors, (1515), 319 states have return successors, (1515), 1484 states have call predecessors, (1515), 1511 states have call successors, (1515) [2022-07-12 15:19:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 8365 transitions. [2022-07-12 15:19:22,277 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 8365 transitions. Word has length 136 [2022-07-12 15:19:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:22,278 INFO L495 AbstractCegarLoop]: Abstraction has 6013 states and 8365 transitions. [2022-07-12 15:19:22,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:19:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 8365 transitions. [2022-07-12 15:19:22,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 15:19:22,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:22,281 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:22,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:19:22,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:22,282 INFO L85 PathProgramCache]: Analyzing trace with hash 887600161, now seen corresponding path program 1 times [2022-07-12 15:19:22,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:22,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604714055] [2022-07-12 15:19:22,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:22,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:19:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:19:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:19:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:19:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:19:22,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:22,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604714055] [2022-07-12 15:19:22,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604714055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:22,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:22,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969442492] [2022-07-12 15:19:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:22,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:19:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:19:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:19:22,581 INFO L87 Difference]: Start difference. First operand 6013 states and 8365 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:19:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:25,263 INFO L93 Difference]: Finished difference Result 17557 states and 24466 transitions. [2022-07-12 15:19:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-07-12 15:19:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:25,322 INFO L225 Difference]: With dead ends: 17557 [2022-07-12 15:19:25,322 INFO L226 Difference]: Without dead ends: 11567 [2022-07-12 15:19:25,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:25,349 INFO L413 NwaCegarLoop]: 2723 mSDtfsCounter, 2566 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 1074 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2935 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1074 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:25,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2935 Valid, 5292 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1074 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 15:19:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2022-07-12 15:19:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 11425. [2022-07-12 15:19:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11425 states, 7954 states have (on average 1.2777219009303495) internal successors, (10163), 8198 states have internal predecessors, (10163), 2855 states have call successors, (2855), 622 states have call predecessors, (2855), 613 states have return successors, (2867), 2776 states have call predecessors, (2867), 2851 states have call successors, (2867) [2022-07-12 15:19:25,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11425 states to 11425 states and 15885 transitions. [2022-07-12 15:19:25,785 INFO L78 Accepts]: Start accepts. Automaton has 11425 states and 15885 transitions. Word has length 142 [2022-07-12 15:19:25,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:25,785 INFO L495 AbstractCegarLoop]: Abstraction has 11425 states and 15885 transitions. [2022-07-12 15:19:25,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:19:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand 11425 states and 15885 transitions. [2022-07-12 15:19:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 15:19:25,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:25,790 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:25,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:19:25,790 INFO L420 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)] === [2022-07-12 15:19:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1482421771, now seen corresponding path program 1 times [2022-07-12 15:19:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:25,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998388728] [2022-07-12 15:19:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:25,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:26,000 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 15:19:26,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:26,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998388728] [2022-07-12 15:19:26,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998388728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:26,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:26,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:26,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253906949] [2022-07-12 15:19:26,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:26,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:19:26,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:26,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:19:26,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:19:26,003 INFO L87 Difference]: Start difference. First operand 11425 states and 15885 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 15:19:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:28,377 INFO L93 Difference]: Finished difference Result 23037 states and 32075 transitions. [2022-07-12 15:19:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:28,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-07-12 15:19:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:28,460 INFO L225 Difference]: With dead ends: 23037 [2022-07-12 15:19:28,461 INFO L226 Difference]: Without dead ends: 17169 [2022-07-12 15:19:28,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:28,489 INFO L413 NwaCegarLoop]: 4384 mSDtfsCounter, 2222 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 7894 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:28,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2599 Valid, 7894 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 15:19:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17169 states. [2022-07-12 15:19:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17169 to 17003. [2022-07-12 15:19:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17003 states, 11847 states have (on average 1.2779606651472948) internal successors, (15140), 12206 states have internal predecessors, (15140), 4236 states have call successors, (4236), 930 states have call predecessors, (4236), 917 states have return successors, (4256), 4124 states have call predecessors, (4256), 4232 states have call successors, (4256) [2022-07-12 15:19:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17003 states to 17003 states and 23632 transitions. [2022-07-12 15:19:29,092 INFO L78 Accepts]: Start accepts. Automaton has 17003 states and 23632 transitions. Word has length 183 [2022-07-12 15:19:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:29,093 INFO L495 AbstractCegarLoop]: Abstraction has 17003 states and 23632 transitions. [2022-07-12 15:19:29,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 15:19:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 17003 states and 23632 transitions. [2022-07-12 15:19:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 15:19:29,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:29,098 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:29,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:19:29,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:29,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:29,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1622970381, now seen corresponding path program 1 times [2022-07-12 15:19:29,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:29,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289248101] [2022-07-12 15:19:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 15:19:29,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289248101] [2022-07-12 15:19:29,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289248101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:29,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:29,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:29,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064652978] [2022-07-12 15:19:29,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:29,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:29,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:29,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:29,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:29,441 INFO L87 Difference]: Start difference. First operand 17003 states and 23632 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:19:31,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:31,727 INFO L93 Difference]: Finished difference Result 17171 states and 23916 transitions. [2022-07-12 15:19:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:31,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-12 15:19:31,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:31,795 INFO L225 Difference]: With dead ends: 17171 [2022-07-12 15:19:31,795 INFO L226 Difference]: Without dead ends: 17169 [2022-07-12 15:19:31,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:31,809 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 2292 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 2966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:31,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 6275 Invalid, 2966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 15:19:31,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17169 states. [2022-07-12 15:19:32,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17169 to 17007. [2022-07-12 15:19:32,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17007 states, 11850 states have (on average 1.2778902953586497) internal successors, (15143), 12209 states have internal predecessors, (15143), 4236 states have call successors, (4236), 931 states have call predecessors, (4236), 918 states have return successors, (4256), 4124 states have call predecessors, (4256), 4232 states have call successors, (4256) [2022-07-12 15:19:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17007 states to 17007 states and 23635 transitions. [2022-07-12 15:19:32,458 INFO L78 Accepts]: Start accepts. Automaton has 17007 states and 23635 transitions. Word has length 183 [2022-07-12 15:19:32,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:32,458 INFO L495 AbstractCegarLoop]: Abstraction has 17007 states and 23635 transitions. [2022-07-12 15:19:32,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:19:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand 17007 states and 23635 transitions. [2022-07-12 15:19:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 15:19:32,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:32,463 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:32,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:19:32,463 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1092258744, now seen corresponding path program 1 times [2022-07-12 15:19:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:32,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88795751] [2022-07-12 15:19:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 15:19:32,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:32,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88795751] [2022-07-12 15:19:32,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88795751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:32,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:32,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:32,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135732113] [2022-07-12 15:19:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:32,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:32,753 INFO L87 Difference]: Start difference. First operand 17007 states and 23635 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:19:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:34,985 INFO L93 Difference]: Finished difference Result 17175 states and 23919 transitions. [2022-07-12 15:19:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 188 [2022-07-12 15:19:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:35,043 INFO L225 Difference]: With dead ends: 17175 [2022-07-12 15:19:35,043 INFO L226 Difference]: Without dead ends: 17173 [2022-07-12 15:19:35,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:35,051 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2284 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:35,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 6286 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 15:19:35,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17173 states. [2022-07-12 15:19:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17173 to 17011. [2022-07-12 15:19:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17011 states, 11853 states have (on average 1.2778199611912595) internal successors, (15146), 12212 states have internal predecessors, (15146), 4236 states have call successors, (4236), 932 states have call predecessors, (4236), 919 states have return successors, (4256), 4124 states have call predecessors, (4256), 4232 states have call successors, (4256) [2022-07-12 15:19:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17011 states to 17011 states and 23638 transitions. [2022-07-12 15:19:35,532 INFO L78 Accepts]: Start accepts. Automaton has 17011 states and 23638 transitions. Word has length 188 [2022-07-12 15:19:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:35,533 INFO L495 AbstractCegarLoop]: Abstraction has 17011 states and 23638 transitions. [2022-07-12 15:19:35,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:19:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17011 states and 23638 transitions. [2022-07-12 15:19:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-12 15:19:35,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:35,538 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:35,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:19:35,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:35,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2027210067, now seen corresponding path program 1 times [2022-07-12 15:19:35,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:35,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324951078] [2022-07-12 15:19:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:35,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:19:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-07-12 15:19:35,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:35,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324951078] [2022-07-12 15:19:35,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324951078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:35,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:35,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:35,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247238445] [2022-07-12 15:19:35,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:35,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:35,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:35,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:35,939 INFO L87 Difference]: Start difference. First operand 17011 states and 23638 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:19:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:38,228 INFO L93 Difference]: Finished difference Result 17179 states and 23922 transitions. [2022-07-12 15:19:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 193 [2022-07-12 15:19:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:38,300 INFO L225 Difference]: With dead ends: 17179 [2022-07-12 15:19:38,300 INFO L226 Difference]: Without dead ends: 17177 [2022-07-12 15:19:38,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:38,314 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 2284 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:38,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 6278 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 15:19:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2022-07-12 15:19:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17015. [2022-07-12 15:19:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17015 states, 11856 states have (on average 1.2777496626180838) internal successors, (15149), 12215 states have internal predecessors, (15149), 4236 states have call successors, (4236), 933 states have call predecessors, (4236), 920 states have return successors, (4256), 4124 states have call predecessors, (4256), 4232 states have call successors, (4256) [2022-07-12 15:19:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17015 states to 17015 states and 23641 transitions. [2022-07-12 15:19:38,915 INFO L78 Accepts]: Start accepts. Automaton has 17015 states and 23641 transitions. Word has length 193 [2022-07-12 15:19:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:38,917 INFO L495 AbstractCegarLoop]: Abstraction has 17015 states and 23641 transitions. [2022-07-12 15:19:38,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:19:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 17015 states and 23641 transitions. [2022-07-12 15:19:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 15:19:38,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:38,922 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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] [2022-07-12 15:19:38,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:19:38,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1450199562, now seen corresponding path program 1 times [2022-07-12 15:19:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952612781] [2022-07-12 15:19:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:38,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 15:19:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-12 15:19:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:19:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 15:19:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 15:19:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 15:19:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-07-12 15:19:39,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:39,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952612781] [2022-07-12 15:19:39,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952612781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:39,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:39,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:19:39,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835366251] [2022-07-12 15:19:39,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:39,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:39,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:39,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:39,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:39,156 INFO L87 Difference]: Start difference. First operand 17015 states and 23641 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:19:44,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:44,278 INFO L93 Difference]: Finished difference Result 34306 states and 47724 transitions. [2022-07-12 15:19:44,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:19:44,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2022-07-12 15:19:44,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:44,369 INFO L225 Difference]: With dead ends: 34306 [2022-07-12 15:19:44,369 INFO L226 Difference]: Without dead ends: 22848 [2022-07-12 15:19:44,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:19:44,419 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 2893 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 4009 mSolverCounterSat, 1917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 7370 SdHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1917 IncrementalHoareTripleChecker+Valid, 4009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:44,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3204 Valid, 7370 Invalid, 5926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1917 Valid, 4009 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 15:19:44,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22848 states. [2022-07-12 15:19:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22848 to 22597. [2022-07-12 15:19:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22597 states, 15753 states have (on average 1.2778518377451913) internal successors, (20130), 16227 states have internal predecessors, (20130), 5617 states have call successors, (5617), 1241 states have call predecessors, (5617), 1224 states have return successors, (5645), 5472 states have call predecessors, (5645), 5613 states have call successors, (5645) [2022-07-12 15:19:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22597 states to 22597 states and 31392 transitions. [2022-07-12 15:19:45,319 INFO L78 Accepts]: Start accepts. Automaton has 22597 states and 31392 transitions. Word has length 210 [2022-07-12 15:19:45,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:45,320 INFO L495 AbstractCegarLoop]: Abstraction has 22597 states and 31392 transitions. [2022-07-12 15:19:45,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:19:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 22597 states and 31392 transitions. [2022-07-12 15:19:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-12 15:19:45,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:45,326 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:45,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:19:45,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:45,327 INFO L85 PathProgramCache]: Analyzing trace with hash 411546776, now seen corresponding path program 1 times [2022-07-12 15:19:45,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:45,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899455834] [2022-07-12 15:19:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:45,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:19:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:19:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-07-12 15:19:45,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:45,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899455834] [2022-07-12 15:19:45,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899455834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:45,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:45,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:45,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918201961] [2022-07-12 15:19:45,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:45,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:45,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:45,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:45,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:45,616 INFO L87 Difference]: Start difference. First operand 22597 states and 31392 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 15:19:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:47,899 INFO L93 Difference]: Finished difference Result 22819 states and 31766 transitions. [2022-07-12 15:19:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 198 [2022-07-12 15:19:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:48,004 INFO L225 Difference]: With dead ends: 22819 [2022-07-12 15:19:48,005 INFO L226 Difference]: Without dead ends: 22817 [2022-07-12 15:19:48,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:48,025 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 2284 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:48,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 6278 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 15:19:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22817 states. [2022-07-12 15:19:49,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22817 to 22601. [2022-07-12 15:19:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22601 states, 15756 states have (on average 1.277798933739528) internal successors, (20133), 16230 states have internal predecessors, (20133), 5617 states have call successors, (5617), 1242 states have call predecessors, (5617), 1225 states have return successors, (5645), 5472 states have call predecessors, (5645), 5613 states have call successors, (5645) [2022-07-12 15:19:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22601 states to 22601 states and 31395 transitions. [2022-07-12 15:19:49,118 INFO L78 Accepts]: Start accepts. Automaton has 22601 states and 31395 transitions. Word has length 198 [2022-07-12 15:19:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:49,119 INFO L495 AbstractCegarLoop]: Abstraction has 22601 states and 31395 transitions. [2022-07-12 15:19:49,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 15:19:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 22601 states and 31395 transitions. [2022-07-12 15:19:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-12 15:19:49,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:49,126 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:49,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 15:19:49,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 204393805, now seen corresponding path program 1 times [2022-07-12 15:19:49,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:49,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434630506] [2022-07-12 15:19:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:19:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:19:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:19:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-12 15:19:49,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:49,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434630506] [2022-07-12 15:19:49,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434630506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:49,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:49,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408611862] [2022-07-12 15:19:49,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:49,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:49,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:49,441 INFO L87 Difference]: Start difference. First operand 22601 states and 31395 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:19:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:51,806 INFO L93 Difference]: Finished difference Result 22823 states and 31769 transitions. [2022-07-12 15:19:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 203 [2022-07-12 15:19:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:51,878 INFO L225 Difference]: With dead ends: 22823 [2022-07-12 15:19:51,879 INFO L226 Difference]: Without dead ends: 22821 [2022-07-12 15:19:51,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:51,892 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2284 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:51,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 6286 Invalid, 2962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 15:19:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22821 states. [2022-07-12 15:19:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22821 to 22605. [2022-07-12 15:19:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22605 states, 15759 states have (on average 1.2777460498762612) internal successors, (20136), 16233 states have internal predecessors, (20136), 5617 states have call successors, (5617), 1243 states have call predecessors, (5617), 1226 states have return successors, (5645), 5472 states have call predecessors, (5645), 5613 states have call successors, (5645) [2022-07-12 15:19:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22605 states to 22605 states and 31398 transitions. [2022-07-12 15:19:52,702 INFO L78 Accepts]: Start accepts. Automaton has 22605 states and 31398 transitions. Word has length 203 [2022-07-12 15:19:52,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:52,702 INFO L495 AbstractCegarLoop]: Abstraction has 22605 states and 31398 transitions. [2022-07-12 15:19:52,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:19:52,703 INFO L276 IsEmpty]: Start isEmpty. Operand 22605 states and 31398 transitions. [2022-07-12 15:19:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-12 15:19:52,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:52,710 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 15:19:52,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:52,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1915811192, now seen corresponding path program 1 times [2022-07-12 15:19:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:52,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71412851] [2022-07-12 15:19:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:52,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:19:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:19:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:19:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:19:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:52,950 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-07-12 15:19:52,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:52,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71412851] [2022-07-12 15:19:52,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71412851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:52,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:52,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:52,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408970911] [2022-07-12 15:19:52,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:52,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:52,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:52,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:52,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:52,952 INFO L87 Difference]: Start difference. First operand 22605 states and 31398 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:19:55,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:55,473 INFO L93 Difference]: Finished difference Result 22827 states and 31772 transitions. [2022-07-12 15:19:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:19:55,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 208 [2022-07-12 15:19:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:55,559 INFO L225 Difference]: With dead ends: 22827 [2022-07-12 15:19:55,559 INFO L226 Difference]: Without dead ends: 22825 [2022-07-12 15:19:55,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:55,577 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 2284 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 2961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:55,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 6278 Invalid, 2961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [726 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 15:19:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22825 states. [2022-07-12 15:19:56,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22825 to 22609. [2022-07-12 15:19:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22609 states, 15762 states have (on average 1.2776931861438903) internal successors, (20139), 16236 states have internal predecessors, (20139), 5617 states have call successors, (5617), 1244 states have call predecessors, (5617), 1227 states have return successors, (5645), 5472 states have call predecessors, (5645), 5613 states have call successors, (5645) [2022-07-12 15:19:56,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22609 states to 22609 states and 31401 transitions. [2022-07-12 15:19:56,376 INFO L78 Accepts]: Start accepts. Automaton has 22609 states and 31401 transitions. Word has length 208 [2022-07-12 15:19:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:56,377 INFO L495 AbstractCegarLoop]: Abstraction has 22609 states and 31401 transitions. [2022-07-12 15:19:56,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:19:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 22609 states and 31401 transitions. [2022-07-12 15:19:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-12 15:19:56,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:56,384 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:56,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 15:19:56,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:56,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash 147146733, now seen corresponding path program 1 times [2022-07-12 15:19:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:56,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591178963] [2022-07-12 15:19:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:19:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:19:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:19:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:19:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:19:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:19:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:19:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:19:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:19:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:19:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:19:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:19:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:19:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:19:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:19:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:19:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:19:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 15:19:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-07-12 15:19:56,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:56,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591178963] [2022-07-12 15:19:56,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591178963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:56,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:56,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:19:56,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795668902] [2022-07-12 15:19:56,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:56,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:19:56,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:19:56,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:19:56,624 INFO L87 Difference]: Start difference. First operand 22609 states and 31401 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:19:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:58,976 INFO L93 Difference]: Finished difference Result 23353 states and 32344 transitions. [2022-07-12 15:19:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:19:58,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 213 [2022-07-12 15:19:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:59,060 INFO L225 Difference]: With dead ends: 23353 [2022-07-12 15:19:59,060 INFO L226 Difference]: Without dead ends: 23351 [2022-07-12 15:19:59,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:59,078 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 2291 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:59,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2586 Valid, 6313 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 15:19:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23351 states. [2022-07-12 15:19:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23351 to 23133. [2022-07-12 15:19:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23133 states, 16113 states have (on average 1.2743747284801092) internal successors, (20534), 16603 states have internal predecessors, (20534), 5705 states have call successors, (5705), 1329 states have call predecessors, (5705), 1312 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:19:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23133 states to 23133 states and 31972 transitions. [2022-07-12 15:19:59,923 INFO L78 Accepts]: Start accepts. Automaton has 23133 states and 31972 transitions. Word has length 213 [2022-07-12 15:19:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:59,923 INFO L495 AbstractCegarLoop]: Abstraction has 23133 states and 31972 transitions. [2022-07-12 15:19:59,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:19:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23133 states and 31972 transitions. [2022-07-12 15:19:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-07-12 15:19:59,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:59,930 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:59,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 15:19:59,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:59,931 INFO L85 PathProgramCache]: Analyzing trace with hash 601378392, now seen corresponding path program 1 times [2022-07-12 15:19:59,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:59,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91358461] [2022-07-12 15:19:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:20:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:20:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:20:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:20:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:20:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 15:20:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:20:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-07-12 15:20:00,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:00,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91358461] [2022-07-12 15:20:00,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91358461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:00,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:00,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:20:00,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810953028] [2022-07-12 15:20:00,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:00,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:20:00,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:20:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:20:00,244 INFO L87 Difference]: Start difference. First operand 23133 states and 31972 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:20:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:02,729 INFO L93 Difference]: Finished difference Result 23355 states and 32346 transitions. [2022-07-12 15:20:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-07-12 15:20:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:02,810 INFO L225 Difference]: With dead ends: 23355 [2022-07-12 15:20:02,810 INFO L226 Difference]: Without dead ends: 23353 [2022-07-12 15:20:02,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:02,827 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2284 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 2959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:02,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 6286 Invalid, 2959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 15:20:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23353 states. [2022-07-12 15:20:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23353 to 23137. [2022-07-12 15:20:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23137 states, 16116 states have (on average 1.2743236535120377) internal successors, (20537), 16606 states have internal predecessors, (20537), 5705 states have call successors, (5705), 1330 states have call predecessors, (5705), 1313 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:20:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23137 states to 23137 states and 31975 transitions. [2022-07-12 15:20:03,691 INFO L78 Accepts]: Start accepts. Automaton has 23137 states and 31975 transitions. Word has length 218 [2022-07-12 15:20:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:03,692 INFO L495 AbstractCegarLoop]: Abstraction has 23137 states and 31975 transitions. [2022-07-12 15:20:03,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:20:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 23137 states and 31975 transitions. [2022-07-12 15:20:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 15:20:03,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:03,700 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:03,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 15:20:03,700 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:03,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -261313907, now seen corresponding path program 1 times [2022-07-12 15:20:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:03,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456398333] [2022-07-12 15:20:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:03,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:20:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:20:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:20:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:20:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:20:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 15:20:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:20:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2022-07-12 15:20:03,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:03,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456398333] [2022-07-12 15:20:03,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456398333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:03,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:03,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:20:03,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079984831] [2022-07-12 15:20:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:03,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:20:03,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:03,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:20:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:20:03,996 INFO L87 Difference]: Start difference. First operand 23137 states and 31975 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:20:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:06,378 INFO L93 Difference]: Finished difference Result 23465 states and 32422 transitions. [2022-07-12 15:20:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:20:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 223 [2022-07-12 15:20:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:06,453 INFO L225 Difference]: With dead ends: 23465 [2022-07-12 15:20:06,453 INFO L226 Difference]: Without dead ends: 23463 [2022-07-12 15:20:06,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:06,469 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2264 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:06,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 6317 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 15:20:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23463 states. [2022-07-12 15:20:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23463 to 23245. [2022-07-12 15:20:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23245 states, 16191 states have (on average 1.2730529306404792) internal successors, (20612), 16681 states have internal predecessors, (20612), 5705 states have call successors, (5705), 1363 states have call predecessors, (5705), 1346 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:20:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23245 states to 23245 states and 32050 transitions. [2022-07-12 15:20:07,349 INFO L78 Accepts]: Start accepts. Automaton has 23245 states and 32050 transitions. Word has length 223 [2022-07-12 15:20:07,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:07,349 INFO L495 AbstractCegarLoop]: Abstraction has 23245 states and 32050 transitions. [2022-07-12 15:20:07,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:20:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 23245 states and 32050 transitions. [2022-07-12 15:20:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-12 15:20:07,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:07,358 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:07,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 15:20:07,358 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash 952090424, now seen corresponding path program 1 times [2022-07-12 15:20:07,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:07,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826539964] [2022-07-12 15:20:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:07,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:20:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:20:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:20:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:20:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:20:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 15:20:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:20:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:20:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-07-12 15:20:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826539964] [2022-07-12 15:20:07,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826539964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:07,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:07,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:20:07,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599046828] [2022-07-12 15:20:07,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:07,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:20:07,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:20:07,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:20:07,598 INFO L87 Difference]: Start difference. First operand 23245 states and 32050 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:20:09,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:09,998 INFO L93 Difference]: Finished difference Result 23467 states and 32424 transitions. [2022-07-12 15:20:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:09,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 228 [2022-07-12 15:20:09,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:10,072 INFO L225 Difference]: With dead ends: 23467 [2022-07-12 15:20:10,073 INFO L226 Difference]: Without dead ends: 23465 [2022-07-12 15:20:10,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:10,086 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2284 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:10,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 6286 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 15:20:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23465 states. [2022-07-12 15:20:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23465 to 23249. [2022-07-12 15:20:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23249 states, 16194 states have (on average 1.2730023465481042) internal successors, (20615), 16684 states have internal predecessors, (20615), 5705 states have call successors, (5705), 1364 states have call predecessors, (5705), 1347 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:20:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23249 states to 23249 states and 32053 transitions. [2022-07-12 15:20:11,199 INFO L78 Accepts]: Start accepts. Automaton has 23249 states and 32053 transitions. Word has length 228 [2022-07-12 15:20:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:11,200 INFO L495 AbstractCegarLoop]: Abstraction has 23249 states and 32053 transitions. [2022-07-12 15:20:11,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:20:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 23249 states and 32053 transitions. [2022-07-12 15:20:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-07-12 15:20:11,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:11,208 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:11,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 15:20:11,208 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash -659609587, now seen corresponding path program 1 times [2022-07-12 15:20:11,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:11,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421921867] [2022-07-12 15:20:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:11,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 15:20:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 15:20:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:20:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 15:20:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 15:20:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 15:20:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 15:20:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 15:20:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:20:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:20:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 15:20:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 15:20:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:20:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 15:20:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-07-12 15:20:11,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:11,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421921867] [2022-07-12 15:20:11,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421921867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:11,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:11,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 15:20:11,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492312631] [2022-07-12 15:20:11,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:11,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 15:20:11,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:11,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 15:20:11,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:11,525 INFO L87 Difference]: Start difference. First operand 23249 states and 32053 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-12 15:20:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:15,616 INFO L93 Difference]: Finished difference Result 23471 states and 32427 transitions. [2022-07-12 15:20:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 15:20:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 5 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 269 [2022-07-12 15:20:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:15,684 INFO L225 Difference]: With dead ends: 23471 [2022-07-12 15:20:15,684 INFO L226 Difference]: Without dead ends: 23469 [2022-07-12 15:20:15,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-07-12 15:20:15,696 INFO L413 NwaCegarLoop]: 2128 mSDtfsCounter, 2934 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 1676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3118 SdHoareTripleChecker+Valid, 5130 SdHoareTripleChecker+Invalid, 5944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1676 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:15,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3118 Valid, 5130 Invalid, 5944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1676 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-12 15:20:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23469 states. [2022-07-12 15:20:16,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23469 to 23253. [2022-07-12 15:20:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23253 states, 16197 states have (on average 1.2729517811940483) internal successors, (20618), 16687 states have internal predecessors, (20618), 5705 states have call successors, (5705), 1365 states have call predecessors, (5705), 1348 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:20:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23253 states to 23253 states and 32056 transitions. [2022-07-12 15:20:16,510 INFO L78 Accepts]: Start accepts. Automaton has 23253 states and 32056 transitions. Word has length 269 [2022-07-12 15:20:16,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:16,511 INFO L495 AbstractCegarLoop]: Abstraction has 23253 states and 32056 transitions. [2022-07-12 15:20:16,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-12 15:20:16,511 INFO L276 IsEmpty]: Start isEmpty. Operand 23253 states and 32056 transitions. [2022-07-12 15:20:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 15:20:16,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:16,520 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:16,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 15:20:16,520 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:16,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1378476344, now seen corresponding path program 1 times [2022-07-12 15:20:16,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:16,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653482273] [2022-07-12 15:20:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:16,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 15:20:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 15:20:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:20:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 15:20:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 15:20:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 15:20:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 15:20:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 15:20:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:20:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:20:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 15:20:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 15:20:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:20:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 15:20:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 15:20:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-07-12 15:20:16,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:16,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653482273] [2022-07-12 15:20:16,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653482273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:16,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:16,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 15:20:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032829911] [2022-07-12 15:20:16,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:16,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 15:20:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 15:20:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:16,918 INFO L87 Difference]: Start difference. First operand 23253 states and 32056 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-12 15:20:20,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:20,974 INFO L93 Difference]: Finished difference Result 23475 states and 32430 transitions. [2022-07-12 15:20:20,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 15:20:20,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 5 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 274 [2022-07-12 15:20:20,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:21,160 INFO L225 Difference]: With dead ends: 23475 [2022-07-12 15:20:21,160 INFO L226 Difference]: Without dead ends: 23471 [2022-07-12 15:20:21,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-07-12 15:20:21,169 INFO L413 NwaCegarLoop]: 2128 mSDtfsCounter, 2934 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 4260 mSolverCounterSat, 1679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3118 SdHoareTripleChecker+Valid, 5130 SdHoareTripleChecker+Invalid, 5939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1679 IncrementalHoareTripleChecker+Valid, 4260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:21,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3118 Valid, 5130 Invalid, 5939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1679 Valid, 4260 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-12 15:20:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23471 states. [2022-07-12 15:20:22,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23471 to 23255. [2022-07-12 15:20:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23255 states, 16199 states have (on average 1.2728563491573555) internal successors, (20619), 16688 states have internal predecessors, (20619), 5705 states have call successors, (5705), 1366 states have call predecessors, (5705), 1348 states have return successors, (5733), 5560 states have call predecessors, (5733), 5701 states have call successors, (5733) [2022-07-12 15:20:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23255 states to 23255 states and 32057 transitions. [2022-07-12 15:20:22,133 INFO L78 Accepts]: Start accepts. Automaton has 23255 states and 32057 transitions. Word has length 274 [2022-07-12 15:20:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:22,133 INFO L495 AbstractCegarLoop]: Abstraction has 23255 states and 32057 transitions. [2022-07-12 15:20:22,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-12 15:20:22,134 INFO L276 IsEmpty]: Start isEmpty. Operand 23255 states and 32057 transitions. [2022-07-12 15:20:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-12 15:20:22,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:22,143 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:22,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 15:20:22,143 INFO L420 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)] === [2022-07-12 15:20:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1399203789, now seen corresponding path program 1 times [2022-07-12 15:20:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:22,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679573047] [2022-07-12 15:20:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:20:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:20:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:20:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:20:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:20:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:20:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:20:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 15:20:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 15:20:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 15:20:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:20:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:20:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 15:20:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-12 15:20:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-12 15:20:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-07-12 15:20:22,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:22,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679573047] [2022-07-12 15:20:22,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679573047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:22,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:22,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:20:22,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198231559] [2022-07-12 15:20:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:22,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:20:22,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:20:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:20:22,390 INFO L87 Difference]: Start difference. First operand 23255 states and 32057 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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) [2022-07-12 15:20:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:24,775 INFO L93 Difference]: Finished difference Result 23471 states and 32426 transitions. [2022-07-12 15:20:24,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:24,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 243 [2022-07-12 15:20:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:24,851 INFO L225 Difference]: With dead ends: 23471 [2022-07-12 15:20:24,851 INFO L226 Difference]: Without dead ends: 23311 [2022-07-12 15:20:24,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:24,868 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 2278 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2570 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 2949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:24,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2570 Valid, 6275 Invalid, 2949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 15:20:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23311 states. [2022-07-12 15:20:25,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23311 to 23095. [2022-07-12 15:20:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23095 states, 16096 states have (on average 1.2736083499005963) internal successors, (20500), 16573 states have internal predecessors, (20500), 5665 states have call successors, (5665), 1348 states have call predecessors, (5665), 1332 states have return successors, (5697), 5533 states have call predecessors, (5697), 5665 states have call successors, (5697) [2022-07-12 15:20:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23095 states to 23095 states and 31862 transitions. [2022-07-12 15:20:25,766 INFO L78 Accepts]: Start accepts. Automaton has 23095 states and 31862 transitions. Word has length 243 [2022-07-12 15:20:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:25,766 INFO L495 AbstractCegarLoop]: Abstraction has 23095 states and 31862 transitions. [2022-07-12 15:20:25,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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) [2022-07-12 15:20:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 23095 states and 31862 transitions. [2022-07-12 15:20:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-07-12 15:20:25,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:25,777 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:25,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 15:20:25,777 INFO L420 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)] === [2022-07-12 15:20:25,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:25,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1179250178, now seen corresponding path program 1 times [2022-07-12 15:20:25,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:25,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966508915] [2022-07-12 15:20:25,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:25,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 15:20:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:25,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:20:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:20:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:20:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:20:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:20:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:20:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:20:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 15:20:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:20:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 15:20:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 15:20:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:20:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 15:20:26,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:26,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966508915] [2022-07-12 15:20:26,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966508915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:26,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:26,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:20:26,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712619120] [2022-07-12 15:20:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:26,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:26,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:26,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:26,043 INFO L87 Difference]: Start difference. First operand 23095 states and 31862 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-12 15:20:32,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:32,271 INFO L93 Difference]: Finished difference Result 49130 states and 67756 transitions. [2022-07-12 15:20:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:32,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 246 [2022-07-12 15:20:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:32,370 INFO L225 Difference]: With dead ends: 49130 [2022-07-12 15:20:32,370 INFO L226 Difference]: Without dead ends: 25877 [2022-07-12 15:20:32,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:32,438 INFO L413 NwaCegarLoop]: 3059 mSDtfsCounter, 1596 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 6583 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:32,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 6583 Invalid, 3692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [718 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-12 15:20:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25877 states. [2022-07-12 15:20:33,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25877 to 25026. [2022-07-12 15:20:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25026 states, 17632 states have (on average 1.2657100725952812) internal successors, (22317), 18114 states have internal predecessors, (22317), 5840 states have call successors, (5840), 1564 states have call predecessors, (5840), 1552 states have return successors, (5864), 5731 states have call predecessors, (5864), 5840 states have call successors, (5864) [2022-07-12 15:20:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25026 states to 25026 states and 34021 transitions. [2022-07-12 15:20:33,732 INFO L78 Accepts]: Start accepts. Automaton has 25026 states and 34021 transitions. Word has length 246 [2022-07-12 15:20:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:33,732 INFO L495 AbstractCegarLoop]: Abstraction has 25026 states and 34021 transitions. [2022-07-12 15:20:33,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-12 15:20:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand 25026 states and 34021 transitions. [2022-07-12 15:20:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-12 15:20:33,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:33,745 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:33,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 15:20:33,745 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:33,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -746072369, now seen corresponding path program 1 times [2022-07-12 15:20:33,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:33,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026548979] [2022-07-12 15:20:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:20:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:20:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 15:20:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:20:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 15:20:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:20:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:20:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:20:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:20:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:20:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:20:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:20:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-12 15:20:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 15:20:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 15:20:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 15:20:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 15:20:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2022-07-12 15:20:34,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:34,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026548979] [2022-07-12 15:20:34,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026548979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:34,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:34,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:20:34,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890067660] [2022-07-12 15:20:34,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:34,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:34,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:34,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:34,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:34,038 INFO L87 Difference]: Start difference. First operand 25026 states and 34021 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-12 15:20:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:38,126 INFO L93 Difference]: Finished difference Result 58791 states and 80149 transitions. [2022-07-12 15:20:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 310 [2022-07-12 15:20:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:38,249 INFO L225 Difference]: With dead ends: 58791 [2022-07-12 15:20:38,250 INFO L226 Difference]: Without dead ends: 33943 [2022-07-12 15:20:38,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:38,321 INFO L413 NwaCegarLoop]: 3425 mSDtfsCounter, 1937 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6376 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:38,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6376 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 15:20:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33943 states. [2022-07-12 15:20:39,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33943 to 32747. [2022-07-12 15:20:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32747 states, 23178 states have (on average 1.2617999827422557) internal successors, (29246), 23784 states have internal predecessors, (29246), 7454 states have call successors, (7454), 2125 states have call predecessors, (7454), 2113 states have return successors, (7478), 7335 states have call predecessors, (7478), 7454 states have call successors, (7478) [2022-07-12 15:20:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32747 states to 32747 states and 44178 transitions. [2022-07-12 15:20:39,928 INFO L78 Accepts]: Start accepts. Automaton has 32747 states and 44178 transitions. Word has length 310 [2022-07-12 15:20:39,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:39,929 INFO L495 AbstractCegarLoop]: Abstraction has 32747 states and 44178 transitions. [2022-07-12 15:20:39,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-12 15:20:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 32747 states and 44178 transitions. [2022-07-12 15:20:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-07-12 15:20:39,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:39,945 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:39,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 15:20:39,946 INFO L420 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)] === [2022-07-12 15:20:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1440619235, now seen corresponding path program 1 times [2022-07-12 15:20:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:39,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184847050] [2022-07-12 15:20:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:20:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:20:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 15:20:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:20:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:20:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:20:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 15:20:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 15:20:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:20:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:20:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:20:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:20:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:20:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:20:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:20:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-12 15:20:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 15:20:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-12 15:20:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 15:20:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-07-12 15:20:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-07-12 15:20:40,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:40,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184847050] [2022-07-12 15:20:40,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184847050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:40,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:40,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:20:40,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508278917] [2022-07-12 15:20:40,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:40,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:40,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:40,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:40,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:40,354 INFO L87 Difference]: Start difference. First operand 32747 states and 44178 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:20:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:47,064 INFO L93 Difference]: Finished difference Result 74461 states and 100815 transitions. [2022-07-12 15:20:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 384 [2022-07-12 15:20:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:47,188 INFO L225 Difference]: With dead ends: 74461 [2022-07-12 15:20:47,189 INFO L226 Difference]: Without dead ends: 41719 [2022-07-12 15:20:47,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:47,249 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 1529 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 7384 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:47,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 7384 Invalid, 3692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-12 15:20:47,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41719 states. [2022-07-12 15:20:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41719 to 40194. [2022-07-12 15:20:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40194 states, 28527 states have (on average 1.2598240263609914) internal successors, (35939), 29256 states have internal predecessors, (35939), 9009 states have call successors, (9009), 2668 states have call predecessors, (9009), 2656 states have return successors, (9033), 8880 states have call predecessors, (9033), 9009 states have call successors, (9033) [2022-07-12 15:20:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40194 states to 40194 states and 53981 transitions. [2022-07-12 15:20:49,334 INFO L78 Accepts]: Start accepts. Automaton has 40194 states and 53981 transitions. Word has length 384 [2022-07-12 15:20:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:49,335 INFO L495 AbstractCegarLoop]: Abstraction has 40194 states and 53981 transitions. [2022-07-12 15:20:49,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:20:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 40194 states and 53981 transitions. [2022-07-12 15:20:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-07-12 15:20:49,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:49,348 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:49,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 15:20:49,349 INFO L420 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)] === [2022-07-12 15:20:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1778906785, now seen corresponding path program 1 times [2022-07-12 15:20:49,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:49,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525305330] [2022-07-12 15:20:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:49,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:20:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:20:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 15:20:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:20:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:20:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:20:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 15:20:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 15:20:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:20:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:20:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:20:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:20:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:20:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:20:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:20:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:20:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-12 15:20:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 15:20:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-12 15:20:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 15:20:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-07-12 15:20:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-07-12 15:20:49,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:49,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525305330] [2022-07-12 15:20:49,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525305330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:49,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:49,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:20:49,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791488741] [2022-07-12 15:20:49,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:49,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:49,722 INFO L87 Difference]: Start difference. First operand 40194 states and 53981 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:20:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:56,870 INFO L93 Difference]: Finished difference Result 92531 states and 124889 transitions. [2022-07-12 15:20:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:20:56,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 384 [2022-07-12 15:20:56,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:57,063 INFO L225 Difference]: With dead ends: 92531 [2022-07-12 15:20:57,064 INFO L226 Difference]: Without dead ends: 52515 [2022-07-12 15:20:57,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:57,151 INFO L413 NwaCegarLoop]: 3696 mSDtfsCounter, 2021 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:57,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 7584 Invalid, 3787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 15:20:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52515 states. [2022-07-12 15:20:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52515 to 50540. [2022-07-12 15:20:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50540 states, 35840 states have (on average 1.2572823660714285) internal successors, (45061), 36738 states have internal predecessors, (45061), 11319 states have call successors, (11319), 3391 states have call predecessors, (11319), 3379 states have return successors, (11343), 11174 states have call predecessors, (11343), 11319 states have call successors, (11343) [2022-07-12 15:20:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50540 states to 50540 states and 67723 transitions. [2022-07-12 15:20:59,719 INFO L78 Accepts]: Start accepts. Automaton has 50540 states and 67723 transitions. Word has length 384 [2022-07-12 15:20:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:59,720 INFO L495 AbstractCegarLoop]: Abstraction has 50540 states and 67723 transitions. [2022-07-12 15:20:59,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (45), 4 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:20:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 50540 states and 67723 transitions. [2022-07-12 15:20:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-07-12 15:20:59,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:59,735 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 12, 12, 12, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:20:59,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 15:20:59,735 INFO L420 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)] === [2022-07-12 15:20:59,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1310019458, now seen corresponding path program 1 times [2022-07-12 15:20:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:59,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094617806] [2022-07-12 15:20:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:20:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:20:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:20:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:20:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:20:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 15:20:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:20:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:20:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:20:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:20:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:20:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:20:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 15:20:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 15:20:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-12 15:20:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 15:20:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 15:20:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:21:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:21:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:21:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:21:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:21:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:21:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:21:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:21:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:21:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:21:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-12 15:21:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-07-12 15:21:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 15:21:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-12 15:21:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-12 15:21:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2022-07-12 15:21:00,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:00,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094617806] [2022-07-12 15:21:00,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094617806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:00,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:00,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:21:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067993378] [2022-07-12 15:21:00,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:00,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:00,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:21:00,087 INFO L87 Difference]: Start difference. First operand 50540 states and 67723 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 3 states have internal predecessors, (181), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-12 15:21:05,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:05,655 INFO L93 Difference]: Finished difference Result 110805 states and 149154 transitions. [2022-07-12 15:21:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:21:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 3 states have internal predecessors, (181), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 439 [2022-07-12 15:21:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:05,863 INFO L225 Difference]: With dead ends: 110805 [2022-07-12 15:21:05,863 INFO L226 Difference]: Without dead ends: 60443 [2022-07-12 15:21:06,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:06,113 INFO L413 NwaCegarLoop]: 3185 mSDtfsCounter, 1988 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 1296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 5997 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1296 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:06,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 5997 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1296 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 15:21:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60443 states. [2022-07-12 15:21:08,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60443 to 58123. [2022-07-12 15:21:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58123 states, 41302 states have (on average 1.2567430148661083) internal successors, (51906), 42324 states have internal predecessors, (51906), 12897 states have call successors, (12897), 3934 states have call predecessors, (12897), 3922 states have return successors, (12921), 12742 states have call predecessors, (12921), 12897 states have call successors, (12921) [2022-07-12 15:21:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58123 states to 58123 states and 77724 transitions. [2022-07-12 15:21:09,047 INFO L78 Accepts]: Start accepts. Automaton has 58123 states and 77724 transitions. Word has length 439 [2022-07-12 15:21:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 58123 states and 77724 transitions. [2022-07-12 15:21:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 3 states have internal predecessors, (181), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-12 15:21:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 58123 states and 77724 transitions. [2022-07-12 15:21:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-07-12 15:21:09,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:09,064 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 12, 12, 12, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:09,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 15:21:09,064 INFO L420 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)] === [2022-07-12 15:21:09,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:09,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1648307008, now seen corresponding path program 1 times [2022-07-12 15:21:09,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:09,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206927849] [2022-07-12 15:21:09,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:09,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:21:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:21:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:21:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:21:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:21:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:21:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:21:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 15:21:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:21:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 15:21:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:21:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:21:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:21:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 15:21:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 15:21:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 15:21:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-12 15:21:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 15:21:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 15:21:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:21:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:21:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:21:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 15:21:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 15:21:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 15:21:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 15:21:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 15:21:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:21:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:21:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 15:21:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-12 15:21:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-07-12 15:21:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 15:21:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-12 15:21:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-12 15:21:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2022-07-12 15:21:09,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:09,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206927849] [2022-07-12 15:21:09,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206927849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:09,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:09,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:21:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001952597] [2022-07-12 15:21:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:09,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:21:09,566 INFO L87 Difference]: Start difference. First operand 58123 states and 77724 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 3 states have internal predecessors, (181), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46)