./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-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-irda-via-ircc.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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:23:36,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:23:36,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:23:36,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:23:36,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:23:36,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:23:36,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:23:36,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:23:36,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:23:36,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:23:36,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:23:36,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:23:36,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:23:36,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:23:36,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:23:36,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:23:36,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:23:36,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:23:36,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:23:36,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:23:36,272 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:23:36,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:23:36,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:23:36,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:23:36,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:23:36,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:23:36,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:23:36,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:23:36,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:23:36,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:23:36,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:23:36,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:23:36,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:23:36,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:23:36,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:23:36,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:23:36,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:23:36,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:23:36,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:23:36,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:23:36,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:23:36,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:23:36,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:23:36,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:23:36,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:23:36,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:23:36,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:23:36,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:23:36,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:23:36,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:23:36,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:23:36,324 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:23:36,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:23:36,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:23:36,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:23:36,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:23:36,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:23:36,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:23:36,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:23:36,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:23:36,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:23:36,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:23:36,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:23:36,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2022-07-20 02:23:36,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:23:36,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:23:36,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:23:36,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:23:36,569 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:23:36,569 INFO L432 ainManager$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-irda-via-ircc.cil.i [2022-07-20 02:23:36,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2214a1914/7319e733e88747bdae7f1e5e17951e33/FLAGfe42952e4 [2022-07-20 02:23:37,244 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:23:37,245 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-irda-via-ircc.cil.i [2022-07-20 02:23:37,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2214a1914/7319e733e88747bdae7f1e5e17951e33/FLAGfe42952e4 [2022-07-20 02:23:37,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2214a1914/7319e733e88747bdae7f1e5e17951e33 [2022-07-20 02:23:37,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:23:37,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:23:37,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:23:37,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:23:37,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:23:37,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:37" (1/1) ... [2022-07-20 02:23:37,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce3567c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:37, skipping insertion in model container [2022-07-20 02:23:37,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:37" (1/1) ... [2022-07-20 02:23:37,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:23:37,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:23:39,306 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-irda-via-ircc.cil.i[329615,329628] [2022-07-20 02:23:39,310 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-irda-via-ircc.cil.i[329784,329797] [2022-07-20 02:23:39,311 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-irda-via-ircc.cil.i[329951,329964] [2022-07-20 02:23:39,314 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-irda-via-ircc.cil.i[330119,330132] [2022-07-20 02:23:39,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:39,357 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:23:39,618 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-irda-via-ircc.cil.i[329615,329628] [2022-07-20 02:23:39,619 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-irda-via-ircc.cil.i[329784,329797] [2022-07-20 02:23:39,619 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-irda-via-ircc.cil.i[329951,329964] [2022-07-20 02:23:39,619 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-irda-via-ircc.cil.i[330119,330132] [2022-07-20 02:23:39,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:39,721 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:23:39,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39 WrapperNode [2022-07-20 02:23:39,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:23:39,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:23:39,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:23:39,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:23:39,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:39,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:39,900 INFO L137 Inliner]: procedures = 395, calls = 2038, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4403 [2022-07-20 02:23:39,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:23:39,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:23:39,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:23:39,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:23:39,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:39,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:39,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:39,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:40,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:40,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:40,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:40,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:23:40,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:23:40,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:23:40,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:23:40,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (1/1) ... [2022-07-20 02:23:40,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:23:40,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:23:40,149 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) [2022-07-20 02:23:40,152 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 [2022-07-20 02:23:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:23:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:23:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-07-20 02:23:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-07-20 02:23:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-07-20 02:23:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-07-20 02:23:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 02:23:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 02:23:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:23:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:23:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2022-07-20 02:23:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2022-07-20 02:23:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 02:23:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 02:23:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-07-20 02:23:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-07-20 02:23:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:23:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:23:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-07-20 02:23:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-07-20 02:23:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-07-20 02:23:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-07-20 02:23:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-07-20 02:23:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-07-20 02:23:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:23:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:23:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-07-20 02:23:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-07-20 02:23:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-07-20 02:23:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-07-20 02:23:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-20 02:23:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-20 02:23:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:23:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:23:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:23:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-07-20 02:23:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-07-20 02:23:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-07-20 02:23:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-07-20 02:23:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-20 02:23:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-20 02:23:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-07-20 02:23:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-07-20 02:23:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:23:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:23:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-07-20 02:23:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-07-20 02:23:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-07-20 02:23:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-07-20 02:23:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 02:23:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-07-20 02:23:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-07-20 02:23:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-07-20 02:23:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-07-20 02:23:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-07-20 02:23:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-07-20 02:23:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:23:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:23:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 02:23:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:23:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:23:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-07-20 02:23:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-07-20 02:23:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 02:23:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:23:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:23:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-07-20 02:23:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-07-20 02:23:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:23:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:23:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:23:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:23:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-07-20 02:23:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-07-20 02:23:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-07-20 02:23:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-07-20 02:23:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-07-20 02:23:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-07-20 02:23:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:23:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:23:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-07-20 02:23:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-07-20 02:23:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:23:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:23:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:23:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-07-20 02:23:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-07-20 02:23:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:23:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:23:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:23:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:23:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:23:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:23:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:23:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:23:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:23:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:23:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-07-20 02:23:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-07-20 02:23:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:23:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:23:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:23:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-07-20 02:23:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-07-20 02:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-07-20 02:23:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-07-20 02:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 02:23:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 02:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:23:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:23:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-07-20 02:23:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-07-20 02:23:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:23:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:23:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-07-20 02:23:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-07-20 02:23:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:23:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:23:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:23:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:23:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-07-20 02:23:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-07-20 02:23:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:23:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:23:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-20 02:23:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-20 02:23:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-07-20 02:23:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-07-20 02:23:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-07-20 02:23:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-07-20 02:23:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 02:23:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 02:23:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-07-20 02:23:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-07-20 02:23:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-07-20 02:23:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-07-20 02:23:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 02:23:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 02:23:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-07-20 02:23:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:23:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-20 02:23:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:23:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:23:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 02:23:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:23:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-20 02:23:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-07-20 02:23:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 02:23:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-20 02:23:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 02:23:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:23:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-20 02:23:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-20 02:23:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-20 02:23:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-07-20 02:23:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-07-20 02:23:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-20 02:23:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-20 02:23:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:23:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:23:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-07-20 02:23:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-07-20 02:23:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-07-20 02:23:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-07-20 02:23:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-07-20 02:23:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-07-20 02:23:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:23:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:23:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-07-20 02:23:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-07-20 02:23:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-07-20 02:23:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-07-20 02:23:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 02:23:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-07-20 02:23:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:23:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:23:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-07-20 02:23:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-07-20 02:23:40,757 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:23:40,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:23:40,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:23:43,232 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:23:43,803 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:23:43,827 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:23:43,827 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 02:23:43,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:23:43 BoogieIcfgContainer [2022-07-20 02:23:43,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:23:43,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:23:43,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:23:43,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:23:43,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:23:37" (1/3) ... [2022-07-20 02:23:43,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0246e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:23:43, skipping insertion in model container [2022-07-20 02:23:43,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:39" (2/3) ... [2022-07-20 02:23:43,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0246e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:23:43, skipping insertion in model container [2022-07-20 02:23:43,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:23:43" (3/3) ... [2022-07-20 02:23:43,836 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-07-20 02:23:43,845 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:23:43,845 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:23:43,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:23:43,908 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@5eacc100, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@83b41e0 [2022-07-20 02:23:43,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:23:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 1999 states, 1251 states have (on average 1.3069544364508394) internal successors, (1635), 1277 states have internal predecessors, (1635), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) [2022-07-20 02:23:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-20 02:23:43,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:43,925 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:23:43,926 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)] === [2022-07-20 02:23:43,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1658643117, now seen corresponding path program 1 times [2022-07-20 02:23:43,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:23:43,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17836591] [2022-07-20 02:23:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:43,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:23:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:23:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:23:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:23:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:23:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:23:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:23:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:23:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-20 02:23:44,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:23:44,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17836591] [2022-07-20 02:23:44,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17836591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:23:44,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:23:44,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:23:44,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614616952] [2022-07-20 02:23:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:44,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:23:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:23:44,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:23:44,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:23:44,396 INFO L87 Difference]: Start difference. First operand has 1999 states, 1251 states have (on average 1.3069544364508394) internal successors, (1635), 1277 states have internal predecessors, (1635), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:23:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:50,030 INFO L93 Difference]: Finished difference Result 5917 states and 8905 transitions. [2022-07-20 02:23:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:23:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2022-07-20 02:23:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:50,074 INFO L225 Difference]: With dead ends: 5917 [2022-07-20 02:23:50,074 INFO L226 Difference]: Without dead ends: 3924 [2022-07-20 02:23:50,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:23:50,094 INFO L413 NwaCegarLoop]: 2797 mSDtfsCounter, 3435 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 2339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 5420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:50,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4055 Valid, 4650 Invalid, 5420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2339 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-20 02:23:50,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2022-07-20 02:23:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 3892. [2022-07-20 02:23:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3892 states, 2442 states have (on average 1.2665847665847665) internal successors, (3093), 2492 states have internal predecessors, (3093), 1268 states have call successors, (1268), 180 states have call predecessors, (1268), 179 states have return successors, (1265), 1241 states have call predecessors, (1265), 1265 states have call successors, (1265) [2022-07-20 02:23:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 5626 transitions. [2022-07-20 02:23:50,389 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 5626 transitions. Word has length 79 [2022-07-20 02:23:50,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:50,390 INFO L495 AbstractCegarLoop]: Abstraction has 3892 states and 5626 transitions. [2022-07-20 02:23:50,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:23:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 5626 transitions. [2022-07-20 02:23:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-20 02:23:50,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:50,393 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:23:50,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 02:23:50,394 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)] === [2022-07-20 02:23:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2063132158, now seen corresponding path program 1 times [2022-07-20 02:23:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:23:50,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890141785] [2022-07-20 02:23:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:23:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:23:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:23:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:23:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:23:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:23:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:23:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:23:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-20 02:23:50,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:23:50,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890141785] [2022-07-20 02:23:50,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890141785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:23:50,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:23:50,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:23:50,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523107067] [2022-07-20 02:23:50,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:50,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:23:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:23:50,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:23:50,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:23:50,541 INFO L87 Difference]: Start difference. First operand 3892 states and 5626 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:23:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:55,627 INFO L93 Difference]: Finished difference Result 10862 states and 15735 transitions. [2022-07-20 02:23:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:23:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-07-20 02:23:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:55,680 INFO L225 Difference]: With dead ends: 10862 [2022-07-20 02:23:55,681 INFO L226 Difference]: Without dead ends: 6985 [2022-07-20 02:23:55,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:23:55,711 INFO L413 NwaCegarLoop]: 2782 mSDtfsCounter, 2896 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 2130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 4665 SdHoareTripleChecker+Invalid, 5092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2130 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:55,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 4665 Invalid, 5092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2130 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-20 02:23:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6985 states. [2022-07-20 02:23:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6985 to 6916. [2022-07-20 02:23:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6916 states, 4317 states have (on average 1.2596710678712069) internal successors, (5438), 4417 states have internal predecessors, (5438), 2267 states have call successors, (2267), 330 states have call predecessors, (2267), 329 states have return successors, (2302), 2208 states have call predecessors, (2302), 2264 states have call successors, (2302) [2022-07-20 02:23:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6916 states to 6916 states and 10007 transitions. [2022-07-20 02:23:56,094 INFO L78 Accepts]: Start accepts. Automaton has 6916 states and 10007 transitions. Word has length 83 [2022-07-20 02:23:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:56,096 INFO L495 AbstractCegarLoop]: Abstraction has 6916 states and 10007 transitions. [2022-07-20 02:23:56,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:23:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6916 states and 10007 transitions. [2022-07-20 02:23:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-20 02:23:56,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:56,101 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:23:56,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 02:23:56,101 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)] === [2022-07-20 02:23:56,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:56,102 INFO L85 PathProgramCache]: Analyzing trace with hash -687884744, now seen corresponding path program 1 times [2022-07-20 02:23:56,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:23:56,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875634155] [2022-07-20 02:23:56,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:56,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:23:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:23:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:23:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:23:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:23:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:23:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:23:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:23:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 02:23:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-20 02:23:56,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:23:56,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875634155] [2022-07-20 02:23:56,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875634155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:23:56,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:23:56,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:23:56,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194793962] [2022-07-20 02:23:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:56,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:23:56,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:23:56,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:23:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:23:56,302 INFO L87 Difference]: Start difference. First operand 6916 states and 10007 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:24:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:01,720 INFO L93 Difference]: Finished difference Result 19838 states and 28768 transitions. [2022-07-20 02:24:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:24:01,721 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-07-20 02:24:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:01,807 INFO L225 Difference]: With dead ends: 19838 [2022-07-20 02:24:01,807 INFO L226 Difference]: Without dead ends: 12937 [2022-07-20 02:24:01,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:24:01,848 INFO L413 NwaCegarLoop]: 2763 mSDtfsCounter, 3269 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 2339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 4622 SdHoareTripleChecker+Invalid, 5379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:01,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 4622 Invalid, 5379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2339 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-20 02:24:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2022-07-20 02:24:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 12832. [2022-07-20 02:24:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12832 states, 8011 states have (on average 1.258519535638497) internal successors, (10082), 8213 states have internal predecessors, (10082), 4205 states have call successors, (4205), 622 states have call predecessors, (4205), 613 states have return successors, (4294), 4068 states have call predecessors, (4294), 4202 states have call successors, (4294) [2022-07-20 02:24:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12832 states to 12832 states and 18581 transitions. [2022-07-20 02:24:02,506 INFO L78 Accepts]: Start accepts. Automaton has 12832 states and 18581 transitions. Word has length 87 [2022-07-20 02:24:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:02,507 INFO L495 AbstractCegarLoop]: Abstraction has 12832 states and 18581 transitions. [2022-07-20 02:24:02,508 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-20 02:24:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 12832 states and 18581 transitions. [2022-07-20 02:24:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-20 02:24:02,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:02,516 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-07-20 02:24:02,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 02:24:02,516 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)] === [2022-07-20 02:24:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:02,517 INFO L85 PathProgramCache]: Analyzing trace with hash 435513709, now seen corresponding path program 1 times [2022-07-20 02:24:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:02,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51684913] [2022-07-20 02:24:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-20 02:24:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:02,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51684913] [2022-07-20 02:24:02,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51684913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:02,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:02,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:24:02,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137253599] [2022-07-20 02:24:02,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:02,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:24:02,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:02,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:24:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:24:02,751 INFO L87 Difference]: Start difference. First operand 12832 states and 18581 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-07-20 02:24:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:07,750 INFO L93 Difference]: Finished difference Result 25813 states and 37407 transitions. [2022-07-20 02:24:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:24:07,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 134 [2022-07-20 02:24:07,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:07,870 INFO L225 Difference]: With dead ends: 25813 [2022-07-20 02:24:07,870 INFO L226 Difference]: Without dead ends: 19268 [2022-07-20 02:24:07,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:24:07,914 INFO L413 NwaCegarLoop]: 4916 mSDtfsCounter, 2630 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 3114 mSolverCounterSat, 1755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 7482 SdHoareTripleChecker+Invalid, 4869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1755 IncrementalHoareTripleChecker+Valid, 3114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:07,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3245 Valid, 7482 Invalid, 4869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1755 Valid, 3114 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-20 02:24:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19268 states. [2022-07-20 02:24:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19268 to 19148. [2022-07-20 02:24:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19148 states, 11951 states have (on average 1.2585557693916827) internal successors, (15041), 12249 states have internal predecessors, (15041), 6275 states have call successors, (6275), 932 states have call predecessors, (6275), 919 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19148 states to 19148 states and 27726 transitions. [2022-07-20 02:24:08,844 INFO L78 Accepts]: Start accepts. Automaton has 19148 states and 27726 transitions. Word has length 134 [2022-07-20 02:24:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:08,845 INFO L495 AbstractCegarLoop]: Abstraction has 19148 states and 27726 transitions. [2022-07-20 02:24:08,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-07-20 02:24:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 19148 states and 27726 transitions. [2022-07-20 02:24:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-20 02:24:08,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:08,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-07-20 02:24:08,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 02:24:08,848 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)] === [2022-07-20 02:24:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash 858215535, now seen corresponding path program 1 times [2022-07-20 02:24:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:08,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149082782] [2022-07-20 02:24:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-20 02:24:09,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149082782] [2022-07-20 02:24:09,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149082782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:09,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:09,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:09,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686316145] [2022-07-20 02:24:09,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:09,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:09,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:09,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:09,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:09,079 INFO L87 Difference]: Start difference. First operand 19148 states and 27726 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 02:24:14,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:14,173 INFO L93 Difference]: Finished difference Result 19250 states and 27922 transitions. [2022-07-20 02:24:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:14,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-07-20 02:24:14,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:14,273 INFO L225 Difference]: With dead ends: 19250 [2022-07-20 02:24:14,273 INFO L226 Difference]: Without dead ends: 19248 [2022-07-20 02:24:14,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:14,292 INFO L413 NwaCegarLoop]: 2499 mSDtfsCounter, 2664 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 5976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:14,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 5477 Invalid, 5976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1753 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-20 02:24:14,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19248 states. [2022-07-20 02:24:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19248 to 19152. [2022-07-20 02:24:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19152 states, 11954 states have (on average 1.258490881713234) internal successors, (15044), 12252 states have internal predecessors, (15044), 6275 states have call successors, (6275), 933 states have call predecessors, (6275), 920 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19152 states to 19152 states and 27729 transitions. [2022-07-20 02:24:15,124 INFO L78 Accepts]: Start accepts. Automaton has 19152 states and 27729 transitions. Word has length 134 [2022-07-20 02:24:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:15,125 INFO L495 AbstractCegarLoop]: Abstraction has 19152 states and 27729 transitions. [2022-07-20 02:24:15,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 02:24:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 19152 states and 27729 transitions. [2022-07-20 02:24:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-20 02:24:15,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:15,129 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-07-20 02:24:15,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 02:24:15,129 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)] === [2022-07-20 02:24:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:15,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1459207571, now seen corresponding path program 1 times [2022-07-20 02:24:15,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:15,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351043222] [2022-07-20 02:24:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-20 02:24:15,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:15,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351043222] [2022-07-20 02:24:15,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351043222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:15,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:15,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058275179] [2022-07-20 02:24:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:15,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:15,342 INFO L87 Difference]: Start difference. First operand 19152 states and 27729 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:24:19,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:19,811 INFO L93 Difference]: Finished difference Result 19254 states and 27925 transitions. [2022-07-20 02:24:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:19,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-07-20 02:24:19,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:19,896 INFO L225 Difference]: With dead ends: 19254 [2022-07-20 02:24:19,896 INFO L226 Difference]: Without dead ends: 19252 [2022-07-20 02:24:19,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:19,915 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:19,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1752 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-20 02:24:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19252 states. [2022-07-20 02:24:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19252 to 19156. [2022-07-20 02:24:20,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19156 states, 11957 states have (on average 1.2584260265952998) internal successors, (15047), 12255 states have internal predecessors, (15047), 6275 states have call successors, (6275), 934 states have call predecessors, (6275), 921 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19156 states to 19156 states and 27732 transitions. [2022-07-20 02:24:20,816 INFO L78 Accepts]: Start accepts. Automaton has 19156 states and 27732 transitions. Word has length 139 [2022-07-20 02:24:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:20,816 INFO L495 AbstractCegarLoop]: Abstraction has 19156 states and 27732 transitions. [2022-07-20 02:24:20,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:24:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 19156 states and 27732 transitions. [2022-07-20 02:24:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-20 02:24:20,819 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:20,820 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:20,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 02:24:20,820 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)] === [2022-07-20 02:24:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:20,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1275034351, now seen corresponding path program 1 times [2022-07-20 02:24:20,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:20,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634395584] [2022-07-20 02:24:20,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:20,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:24:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-07-20 02:24:21,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:21,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634395584] [2022-07-20 02:24:21,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634395584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:21,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:21,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689146464] [2022-07-20 02:24:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:21,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:21,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:21,040 INFO L87 Difference]: Start difference. First operand 19156 states and 27732 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 02:24:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:26,919 INFO L93 Difference]: Finished difference Result 19258 states and 27928 transitions. [2022-07-20 02:24:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:26,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-07-20 02:24:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:27,012 INFO L225 Difference]: With dead ends: 19258 [2022-07-20 02:24:27,012 INFO L226 Difference]: Without dead ends: 19256 [2022-07-20 02:24:27,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:27,030 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1751 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:27,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1751 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-20 02:24:27,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19256 states. [2022-07-20 02:24:27,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19256 to 19160. [2022-07-20 02:24:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19160 states, 11960 states have (on average 1.258361204013378) internal successors, (15050), 12258 states have internal predecessors, (15050), 6275 states have call successors, (6275), 935 states have call predecessors, (6275), 922 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:27,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19160 states to 19160 states and 27735 transitions. [2022-07-20 02:24:27,778 INFO L78 Accepts]: Start accepts. Automaton has 19160 states and 27735 transitions. Word has length 144 [2022-07-20 02:24:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:27,778 INFO L495 AbstractCegarLoop]: Abstraction has 19160 states and 27735 transitions. [2022-07-20 02:24:27,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 02:24:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 19160 states and 27735 transitions. [2022-07-20 02:24:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 02:24:27,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:27,782 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-07-20 02:24:27,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 02:24:27,783 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)] === [2022-07-20 02:24:27,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash 167533421, now seen corresponding path program 1 times [2022-07-20 02:24:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:27,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504785919] [2022-07-20 02:24:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:27,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:24:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:24:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 02:24:27,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:27,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504785919] [2022-07-20 02:24:27,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504785919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:27,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:27,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:27,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821389996] [2022-07-20 02:24:27,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:27,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:27,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:27,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:27,961 INFO L87 Difference]: Start difference. First operand 19160 states and 27735 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:24:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:32,640 INFO L93 Difference]: Finished difference Result 19262 states and 27931 transitions. [2022-07-20 02:24:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2022-07-20 02:24:32,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:32,725 INFO L225 Difference]: With dead ends: 19262 [2022-07-20 02:24:32,725 INFO L226 Difference]: Without dead ends: 19260 [2022-07-20 02:24:32,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:32,742 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1750 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:32,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1750 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-20 02:24:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19260 states. [2022-07-20 02:24:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19260 to 19164. [2022-07-20 02:24:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19164 states, 11963 states have (on average 1.2582964139429909) internal successors, (15053), 12261 states have internal predecessors, (15053), 6275 states have call successors, (6275), 936 states have call predecessors, (6275), 923 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19164 states to 19164 states and 27738 transitions. [2022-07-20 02:24:33,669 INFO L78 Accepts]: Start accepts. Automaton has 19164 states and 27738 transitions. Word has length 149 [2022-07-20 02:24:33,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:33,670 INFO L495 AbstractCegarLoop]: Abstraction has 19164 states and 27738 transitions. [2022-07-20 02:24:33,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:24:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19164 states and 27738 transitions. [2022-07-20 02:24:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-20 02:24:33,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:33,675 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-07-20 02:24:33,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 02:24:33,675 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)] === [2022-07-20 02:24:33,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1104465553, now seen corresponding path program 1 times [2022-07-20 02:24:33,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:33,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209000723] [2022-07-20 02:24:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:33,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:24:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:24:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:24:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-07-20 02:24:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209000723] [2022-07-20 02:24:34,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209000723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:34,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:34,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724908283] [2022-07-20 02:24:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:34,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:34,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:34,020 INFO L87 Difference]: Start difference. First operand 19164 states and 27738 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:24:38,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:38,728 INFO L93 Difference]: Finished difference Result 19266 states and 27934 transitions. [2022-07-20 02:24:38,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:38,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 154 [2022-07-20 02:24:38,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:38,821 INFO L225 Difference]: With dead ends: 19266 [2022-07-20 02:24:38,822 INFO L226 Difference]: Without dead ends: 19264 [2022-07-20 02:24:38,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:38,842 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1749 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:38,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1749 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-20 02:24:38,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19264 states. [2022-07-20 02:24:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19264 to 19168. [2022-07-20 02:24:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19168 states, 11966 states have (on average 1.2582316563596858) internal successors, (15056), 12264 states have internal predecessors, (15056), 6275 states have call successors, (6275), 937 states have call predecessors, (6275), 924 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19168 states to 19168 states and 27741 transitions. [2022-07-20 02:24:39,604 INFO L78 Accepts]: Start accepts. Automaton has 19168 states and 27741 transitions. Word has length 154 [2022-07-20 02:24:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:39,604 INFO L495 AbstractCegarLoop]: Abstraction has 19168 states and 27741 transitions. [2022-07-20 02:24:39,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:24:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19168 states and 27741 transitions. [2022-07-20 02:24:39,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-20 02:24:39,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:39,609 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-07-20 02:24:39,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 02:24:39,609 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)] === [2022-07-20 02:24:39,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:39,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1487346579, now seen corresponding path program 1 times [2022-07-20 02:24:39,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:39,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133501224] [2022-07-20 02:24:39,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:39,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:24:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:24:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:24:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:24:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-07-20 02:24:39,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:39,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133501224] [2022-07-20 02:24:39,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133501224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:39,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:39,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:39,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087674996] [2022-07-20 02:24:39,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:39,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:39,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:39,775 INFO L87 Difference]: Start difference. First operand 19168 states and 27741 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:24:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:45,476 INFO L93 Difference]: Finished difference Result 19270 states and 27937 transitions. [2022-07-20 02:24:45,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:45,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 159 [2022-07-20 02:24:45,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:45,554 INFO L225 Difference]: With dead ends: 19270 [2022-07-20 02:24:45,554 INFO L226 Difference]: Without dead ends: 19268 [2022-07-20 02:24:45,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:45,570 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1748 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:45,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1748 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-20 02:24:45,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19268 states. [2022-07-20 02:24:46,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19268 to 19172. [2022-07-20 02:24:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19172 states, 11969 states have (on average 1.2581669312390342) internal successors, (15059), 12267 states have internal predecessors, (15059), 6275 states have call successors, (6275), 938 states have call predecessors, (6275), 925 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2022-07-20 02:24:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19172 states to 19172 states and 27744 transitions. [2022-07-20 02:24:46,364 INFO L78 Accepts]: Start accepts. Automaton has 19172 states and 27744 transitions. Word has length 159 [2022-07-20 02:24:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:46,364 INFO L495 AbstractCegarLoop]: Abstraction has 19172 states and 27744 transitions. [2022-07-20 02:24:46,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:24:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 19172 states and 27744 transitions. [2022-07-20 02:24:46,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-20 02:24:46,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:46,370 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 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] [2022-07-20 02:24:46,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 02:24:46,370 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-07-20 02:24:46,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1153065481, now seen corresponding path program 1 times [2022-07-20 02:24:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:46,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332414568] [2022-07-20 02:24:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:46,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:24:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:24:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:24:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:24:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:24:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:24:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 02:24:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-20 02:24:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-07-20 02:24:46,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:46,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332414568] [2022-07-20 02:24:46,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332414568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:46,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:46,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:24:46,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73877312] [2022-07-20 02:24:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:46,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:46,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:46,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:24:46,582 INFO L87 Difference]: Start difference. First operand 19172 states and 27744 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-20 02:24:50,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:24:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:58,186 INFO L93 Difference]: Finished difference Result 39320 states and 57027 transitions. [2022-07-20 02:24:58,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:24:58,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-07-20 02:24:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:58,270 INFO L225 Difference]: With dead ends: 39320 [2022-07-20 02:24:58,271 INFO L226 Difference]: Without dead ends: 20163 [2022-07-20 02:24:58,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:58,344 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 3385 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 3505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 6954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3505 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:58,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 4929 Invalid, 6954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3505 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-07-20 02:24:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20163 states. [2022-07-20 02:24:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20163 to 19855. [2022-07-20 02:24:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19855 states, 12321 states have (on average 1.256797337878419) internal successors, (15485), 12601 states have internal predecessors, (15485), 6544 states have call successors, (6544), 988 states have call predecessors, (6544), 987 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2022-07-20 02:24:59,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19855 states to 19855 states and 28678 transitions. [2022-07-20 02:24:59,377 INFO L78 Accepts]: Start accepts. Automaton has 19855 states and 28678 transitions. Word has length 156 [2022-07-20 02:24:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:59,378 INFO L495 AbstractCegarLoop]: Abstraction has 19855 states and 28678 transitions. [2022-07-20 02:24:59,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-20 02:24:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 19855 states and 28678 transitions. [2022-07-20 02:24:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-20 02:24:59,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:59,381 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:59,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 02:24:59,381 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)] === [2022-07-20 02:24:59,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash -495552529, now seen corresponding path program 1 times [2022-07-20 02:24:59,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:24:59,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036471990] [2022-07-20 02:24:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:24:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:24:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:24:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:24:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:24:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:24:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:24:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:24:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:24:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:24:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:24:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:24:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:24:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:24:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:24:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:24:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:24:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:24:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:24:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:24:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:24:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:59,590 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-07-20 02:24:59,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:24:59,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036471990] [2022-07-20 02:24:59,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036471990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:59,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:59,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:24:59,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301403200] [2022-07-20 02:24:59,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:59,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:59,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:24:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:59,592 INFO L87 Difference]: Start difference. First operand 19855 states and 28678 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:05,672 INFO L93 Difference]: Finished difference Result 19969 states and 28884 transitions. [2022-07-20 02:25:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:05,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 164 [2022-07-20 02:25:05,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:05,784 INFO L225 Difference]: With dead ends: 19969 [2022-07-20 02:25:05,784 INFO L226 Difference]: Without dead ends: 19967 [2022-07-20 02:25:05,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:25:05,805 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 2656 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 5970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1747 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:05,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 5476 Invalid, 5970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1747 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-20 02:25:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19967 states. [2022-07-20 02:25:06,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19967 to 19859. [2022-07-20 02:25:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19859 states, 12324 states have (on average 1.2567348263550795) internal successors, (15488), 12604 states have internal predecessors, (15488), 6544 states have call successors, (6544), 989 states have call predecessors, (6544), 988 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2022-07-20 02:25:07,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19859 states to 19859 states and 28681 transitions. [2022-07-20 02:25:07,016 INFO L78 Accepts]: Start accepts. Automaton has 19859 states and 28681 transitions. Word has length 164 [2022-07-20 02:25:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:07,016 INFO L495 AbstractCegarLoop]: Abstraction has 19859 states and 28681 transitions. [2022-07-20 02:25:07,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:07,017 INFO L276 IsEmpty]: Start isEmpty. Operand 19859 states and 28681 transitions. [2022-07-20 02:25:07,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-20 02:25:07,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:07,019 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:25:07,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 02:25:07,019 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)] === [2022-07-20 02:25:07,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash -942678675, now seen corresponding path program 1 times [2022-07-20 02:25:07,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:07,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72509774] [2022-07-20 02:25:07,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:07,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:25:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:25:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:25:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:25:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:25:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-07-20 02:25:07,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:07,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72509774] [2022-07-20 02:25:07,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72509774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:07,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:07,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:07,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300858076] [2022-07-20 02:25:07,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:07,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:07,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:07,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:07,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:07,216 INFO L87 Difference]: Start difference. First operand 19859 states and 28681 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:13,843 INFO L93 Difference]: Finished difference Result 19973 states and 28887 transitions. [2022-07-20 02:25:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:13,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 169 [2022-07-20 02:25:13,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:13,927 INFO L225 Difference]: With dead ends: 19973 [2022-07-20 02:25:13,927 INFO L226 Difference]: Without dead ends: 19971 [2022-07-20 02:25:13,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:25:13,946 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 2656 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 5969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1746 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:13,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 5476 Invalid, 5969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1746 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-20 02:25:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19971 states. [2022-07-20 02:25:14,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19971 to 19863. [2022-07-20 02:25:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19863 states, 12327 states have (on average 1.256672345258376) internal successors, (15491), 12607 states have internal predecessors, (15491), 6544 states have call successors, (6544), 990 states have call predecessors, (6544), 989 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2022-07-20 02:25:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19863 states to 19863 states and 28684 transitions. [2022-07-20 02:25:14,952 INFO L78 Accepts]: Start accepts. Automaton has 19863 states and 28684 transitions. Word has length 169 [2022-07-20 02:25:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:14,952 INFO L495 AbstractCegarLoop]: Abstraction has 19863 states and 28684 transitions. [2022-07-20 02:25:14,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 19863 states and 28684 transitions. [2022-07-20 02:25:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-20 02:25:14,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:14,955 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-07-20 02:25:14,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 02:25:14,956 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)] === [2022-07-20 02:25:14,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1949171756, now seen corresponding path program 1 times [2022-07-20 02:25:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:14,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064606119] [2022-07-20 02:25:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:14,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:25:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 02:25:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 02:25:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:25:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:25:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 02:25:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 02:25:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 02:25:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-20 02:25:15,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:15,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064606119] [2022-07-20 02:25:15,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064606119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:15,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:15,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:15,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747168775] [2022-07-20 02:25:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:15,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:15,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:15,238 INFO L87 Difference]: Start difference. First operand 19863 states and 28684 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-07-20 02:25:18,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:25:24,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:24,364 INFO L93 Difference]: Finished difference Result 25949 states and 37670 transitions. [2022-07-20 02:25:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:25:24,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 194 [2022-07-20 02:25:24,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:24,469 INFO L225 Difference]: With dead ends: 25949 [2022-07-20 02:25:24,469 INFO L226 Difference]: Without dead ends: 25947 [2022-07-20 02:25:24,487 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 [2022-07-20 02:25:24,488 INFO L413 NwaCegarLoop]: 3123 mSDtfsCounter, 2197 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 7493 mSolverCounterSat, 1614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 6508 SdHoareTripleChecker+Invalid, 9107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1614 IncrementalHoareTripleChecker+Valid, 7493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:24,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 6508 Invalid, 9107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1614 Valid, 7493 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 02:25:24,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25947 states. [2022-07-20 02:25:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25947 to 25831. [2022-07-20 02:25:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25831 states, 15630 states have (on average 1.2525911708253359) internal successors, (19578), 15964 states have internal predecessors, (19578), 8890 states have call successors, (8890), 1309 states have call predecessors, (8890), 1308 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2022-07-20 02:25:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25831 states to 25831 states and 37463 transitions. [2022-07-20 02:25:25,770 INFO L78 Accepts]: Start accepts. Automaton has 25831 states and 37463 transitions. Word has length 194 [2022-07-20 02:25:25,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:25,770 INFO L495 AbstractCegarLoop]: Abstraction has 25831 states and 37463 transitions. [2022-07-20 02:25:25,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-07-20 02:25:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 25831 states and 37463 transitions. [2022-07-20 02:25:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-20 02:25:25,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:25,773 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:25:25,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 02:25:25,773 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)] === [2022-07-20 02:25:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash -518699411, now seen corresponding path program 1 times [2022-07-20 02:25:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:25,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797970538] [2022-07-20 02:25:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:25:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:25:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:25:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:25:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:25:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:25:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:25:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-07-20 02:25:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:25,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797970538] [2022-07-20 02:25:25,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797970538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:25,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:25,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279737725] [2022-07-20 02:25:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:25,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:25,944 INFO L87 Difference]: Start difference. First operand 25831 states and 37463 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:28,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:25:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:32,826 INFO L93 Difference]: Finished difference Result 25953 states and 37673 transitions. [2022-07-20 02:25:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:32,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 179 [2022-07-20 02:25:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:33,041 INFO L225 Difference]: With dead ends: 25953 [2022-07-20 02:25:33,041 INFO L226 Difference]: Without dead ends: 25951 [2022-07-20 02:25:33,051 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 [2022-07-20 02:25:33,053 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 2656 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 5967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:33,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 5476 Invalid, 5967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1744 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-20 02:25:33,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25951 states. [2022-07-20 02:25:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25951 to 25835. [2022-07-20 02:25:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25835 states, 15633 states have (on average 1.252542698138553) internal successors, (19581), 15967 states have internal predecessors, (19581), 8890 states have call successors, (8890), 1310 states have call predecessors, (8890), 1309 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2022-07-20 02:25:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25835 states to 25835 states and 37466 transitions. [2022-07-20 02:25:34,422 INFO L78 Accepts]: Start accepts. Automaton has 25835 states and 37466 transitions. Word has length 179 [2022-07-20 02:25:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:34,422 INFO L495 AbstractCegarLoop]: Abstraction has 25835 states and 37466 transitions. [2022-07-20 02:25:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 25835 states and 37466 transitions. [2022-07-20 02:25:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-20 02:25:34,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:34,425 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-07-20 02:25:34,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 02:25:34,426 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)] === [2022-07-20 02:25:34,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1215619476, now seen corresponding path program 1 times [2022-07-20 02:25:34,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:34,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872481379] [2022-07-20 02:25:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:34,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:25:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 02:25:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 02:25:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:25:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:25:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 02:25:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 02:25:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 02:25:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:25:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-20 02:25:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-07-20 02:25:34,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:34,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872481379] [2022-07-20 02:25:34,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872481379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:34,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:34,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200145784] [2022-07-20 02:25:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:34,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:34,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:34,642 INFO L87 Difference]: Start difference. First operand 25835 states and 37466 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-07-20 02:25:41,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:41,500 INFO L93 Difference]: Finished difference Result 25957 states and 37676 transitions. [2022-07-20 02:25:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 204 [2022-07-20 02:25:41,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:41,610 INFO L225 Difference]: With dead ends: 25957 [2022-07-20 02:25:41,610 INFO L226 Difference]: Without dead ends: 25955 [2022-07-20 02:25:41,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:25:41,629 INFO L413 NwaCegarLoop]: 2500 mSDtfsCounter, 2645 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 5966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1743 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:41,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 5472 Invalid, 5966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1743 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-20 02:25:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25955 states. [2022-07-20 02:25:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25955 to 25839. [2022-07-20 02:25:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25839 states, 15636 states have (on average 1.2524942440521873) internal successors, (19584), 15970 states have internal predecessors, (19584), 8890 states have call successors, (8890), 1311 states have call predecessors, (8890), 1310 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2022-07-20 02:25:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25839 states to 25839 states and 37469 transitions. [2022-07-20 02:25:42,982 INFO L78 Accepts]: Start accepts. Automaton has 25839 states and 37469 transitions. Word has length 204 [2022-07-20 02:25:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:42,983 INFO L495 AbstractCegarLoop]: Abstraction has 25839 states and 37469 transitions. [2022-07-20 02:25:42,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-07-20 02:25:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25839 states and 37469 transitions. [2022-07-20 02:25:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 02:25:42,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:42,986 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:25:42,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 02:25:42,987 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)] === [2022-07-20 02:25:42,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:42,988 INFO L85 PathProgramCache]: Analyzing trace with hash -673374355, now seen corresponding path program 1 times [2022-07-20 02:25:42,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:42,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001471783] [2022-07-20 02:25:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:42,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:25:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:25:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:25:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:25:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:25:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:25:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:25:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 02:25:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 02:25:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-07-20 02:25:43,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:43,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001471783] [2022-07-20 02:25:43,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001471783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:43,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:43,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823854255] [2022-07-20 02:25:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:43,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:43,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:43,206 INFO L87 Difference]: Start difference. First operand 25839 states and 37469 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:50,158 INFO L93 Difference]: Finished difference Result 25961 states and 37679 transitions. [2022-07-20 02:25:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:50,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 189 [2022-07-20 02:25:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:50,314 INFO L225 Difference]: With dead ends: 25961 [2022-07-20 02:25:50,314 INFO L226 Difference]: Without dead ends: 25959 [2022-07-20 02:25:50,342 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 [2022-07-20 02:25:50,343 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2656 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 5965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:50,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5480 Invalid, 5965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1742 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-20 02:25:50,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25959 states. [2022-07-20 02:25:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25959 to 25843. [2022-07-20 02:25:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25843 states, 15639 states have (on average 1.2524458085555343) internal successors, (19587), 15973 states have internal predecessors, (19587), 8890 states have call successors, (8890), 1312 states have call predecessors, (8890), 1311 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2022-07-20 02:25:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25843 states to 25843 states and 37472 transitions. [2022-07-20 02:25:51,928 INFO L78 Accepts]: Start accepts. Automaton has 25843 states and 37472 transitions. Word has length 189 [2022-07-20 02:25:51,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:51,929 INFO L495 AbstractCegarLoop]: Abstraction has 25843 states and 37472 transitions. [2022-07-20 02:25:51,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:25:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 25843 states and 37472 transitions. [2022-07-20 02:25:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-20 02:25:51,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:51,934 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-07-20 02:25:51,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 02:25:51,935 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)] === [2022-07-20 02:25:51,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:51,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1396251820, now seen corresponding path program 1 times [2022-07-20 02:25:51,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:25:51,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741374614] [2022-07-20 02:25:51,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:51,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:25:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:25:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:25:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:25:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:25:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:25:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:25:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:25:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:25:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:25:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:25:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:25:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:25:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:25:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:25:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 02:25:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 02:25:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:25:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:25:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:25:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:25:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:25:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 02:25:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 02:25:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 02:25:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:25:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-20 02:25:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-20 02:25:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 02:25:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-07-20 02:25:52,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:25:52,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741374614] [2022-07-20 02:25:52,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741374614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:52,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:52,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:25:52,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285483763] [2022-07-20 02:25:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:52,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:25:52,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:25:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:25:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:25:52,159 INFO L87 Difference]: Start difference. First operand 25843 states and 37472 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 02:25:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:59,309 INFO L93 Difference]: Finished difference Result 25965 states and 37682 transitions. [2022-07-20 02:25:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:25:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 214 [2022-07-20 02:25:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:59,437 INFO L225 Difference]: With dead ends: 25965 [2022-07-20 02:25:59,437 INFO L226 Difference]: Without dead ends: 25961 [2022-07-20 02:25:59,464 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 [2022-07-20 02:25:59,465 INFO L413 NwaCegarLoop]: 2500 mSDtfsCounter, 2645 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 5964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1741 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:59,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 5472 Invalid, 5964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1741 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-20 02:25:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25961 states. [2022-07-20 02:26:00,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25961 to 25845. [2022-07-20 02:26:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25845 states, 15641 states have (on average 1.2523495940157279) internal successors, (19588), 15974 states have internal predecessors, (19588), 8890 states have call successors, (8890), 1313 states have call predecessors, (8890), 1311 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2022-07-20 02:26:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25845 states to 25845 states and 37473 transitions. [2022-07-20 02:26:00,856 INFO L78 Accepts]: Start accepts. Automaton has 25845 states and 37473 transitions. Word has length 214 [2022-07-20 02:26:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:00,856 INFO L495 AbstractCegarLoop]: Abstraction has 25845 states and 37473 transitions. [2022-07-20 02:26:00,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 02:26:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 25845 states and 37473 transitions. [2022-07-20 02:26:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-20 02:26:00,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:00,860 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:26:00,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 02:26:00,860 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:26:00,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:00,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1071343725, now seen corresponding path program 1 times [2022-07-20 02:26:00,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:26:00,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209691786] [2022-07-20 02:26:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:00,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:26:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:26:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:26:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:26:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:26:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:26:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:26:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:26:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:26:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 02:26:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:26:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:26:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 02:26:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 02:26:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:26:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 02:26:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:26:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 02:26:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:26:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:26:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 02:26:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 02:26:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 02:26:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 02:26:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 02:26:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:26:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:01,021 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-07-20 02:26:01,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:26:01,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209691786] [2022-07-20 02:26:01,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209691786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:26:01,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:26:01,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:26:01,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068377082] [2022-07-20 02:26:01,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:01,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:26:01,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:26:01,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:26:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:26:01,023 INFO L87 Difference]: Start difference. First operand 25845 states and 37473 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:26:03,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:26:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:08,482 INFO L93 Difference]: Finished difference Result 25961 states and 37678 transitions. [2022-07-20 02:26:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:26:08,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 199 [2022-07-20 02:26:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:08,578 INFO L225 Difference]: With dead ends: 25961 [2022-07-20 02:26:08,578 INFO L226 Difference]: Without dead ends: 25743 [2022-07-20 02:26:08,592 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 [2022-07-20 02:26:08,592 INFO L413 NwaCegarLoop]: 2498 mSDtfsCounter, 2650 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 4218 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 5958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 4218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:26:08,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 5473 Invalid, 5958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 4218 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-20 02:26:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25743 states. [2022-07-20 02:26:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25743 to 25627. [2022-07-20 02:26:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25627 states, 15493 states have (on average 1.2520493125927838) internal successors, (19398), 15810 states have internal predecessors, (19398), 8837 states have call successors, (8837), 1295 states have call predecessors, (8837), 1295 states have return successors, (8945), 8653 states have call predecessors, (8945), 8837 states have call successors, (8945) [2022-07-20 02:26:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25627 states to 25627 states and 37180 transitions. [2022-07-20 02:26:10,169 INFO L78 Accepts]: Start accepts. Automaton has 25627 states and 37180 transitions. Word has length 199 [2022-07-20 02:26:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:10,169 INFO L495 AbstractCegarLoop]: Abstraction has 25627 states and 37180 transitions. [2022-07-20 02:26:10,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-20 02:26:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 25627 states and 37180 transitions. [2022-07-20 02:26:10,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-20 02:26:10,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:10,174 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 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] [2022-07-20 02:26:10,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 02:26:10,175 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)] === [2022-07-20 02:26:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:10,175 INFO L85 PathProgramCache]: Analyzing trace with hash 842221792, now seen corresponding path program 1 times [2022-07-20 02:26:10,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:26:10,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234948521] [2022-07-20 02:26:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:10,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:26:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:26:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:26:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:26:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:26:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:26:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:26:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:26:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:26:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:26:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:26:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 02:26:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:26:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 02:26:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:26:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:26:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:26:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:26:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 02:26:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 02:26:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-07-20 02:26:10,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:26:10,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234948521] [2022-07-20 02:26:10,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234948521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:26:10,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:26:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:26:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194897532] [2022-07-20 02:26:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:10,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:26:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:26:10,368 INFO L87 Difference]: Start difference. First operand 25627 states and 37180 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-07-20 02:26:15,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:26:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:24,016 INFO L93 Difference]: Finished difference Result 60782 states and 88375 transitions. [2022-07-20 02:26:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:26:24,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 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 219 [2022-07-20 02:26:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:24,171 INFO L225 Difference]: With dead ends: 60782 [2022-07-20 02:26:24,171 INFO L226 Difference]: Without dead ends: 35211 [2022-07-20 02:26:24,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:24,249 INFO L413 NwaCegarLoop]: 3974 mSDtfsCounter, 2627 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 3505 mSolverCounterSat, 2784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3111 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 6289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2784 IncrementalHoareTripleChecker+Valid, 3505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:26:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3111 Valid, 6130 Invalid, 6289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2784 Valid, 3505 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-07-20 02:26:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35211 states. [2022-07-20 02:26:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35211 to 34849. [2022-07-20 02:26:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34849 states, 20973 states have (on average 1.2517999332475087) internal successors, (26254), 21378 states have internal predecessors, (26254), 12099 states have call successors, (12099), 1775 states have call predecessors, (12099), 1775 states have return successors, (12207), 11873 states have call predecessors, (12207), 12099 states have call successors, (12207) [2022-07-20 02:26:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34849 states to 34849 states and 50560 transitions. [2022-07-20 02:26:26,262 INFO L78 Accepts]: Start accepts. Automaton has 34849 states and 50560 transitions. Word has length 219 [2022-07-20 02:26:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:26,262 INFO L495 AbstractCegarLoop]: Abstraction has 34849 states and 50560 transitions. [2022-07-20 02:26:26,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-07-20 02:26:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 34849 states and 50560 transitions. [2022-07-20 02:26:26,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-20 02:26:26,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:26,267 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:26:26,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-20 02:26:26,268 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)] === [2022-07-20 02:26:26,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:26,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1251657916, now seen corresponding path program 1 times [2022-07-20 02:26:26,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:26:26,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794342264] [2022-07-20 02:26:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:26,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:26:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:26:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:26:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:26:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:26:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:26:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:26:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:26:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:26:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:26:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:26:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 02:26:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:26:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 02:26:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:26:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:26:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:26:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:26:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 02:26:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-20 02:26:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:26:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:26:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:26:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:26:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-20 02:26:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-20 02:26:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:26,489 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2022-07-20 02:26:26,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:26:26,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794342264] [2022-07-20 02:26:26,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794342264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:26:26,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:26:26,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:26:26,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004814620] [2022-07-20 02:26:26,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:26,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:26,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:26:26,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:26,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:26:26,492 INFO L87 Difference]: Start difference. First operand 34849 states and 50560 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 02:26:29,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:26:30,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:26:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:39,659 INFO L93 Difference]: Finished difference Result 79283 states and 115219 transitions. [2022-07-20 02:26:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:26:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 292 [2022-07-20 02:26:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:39,881 INFO L225 Difference]: With dead ends: 79283 [2022-07-20 02:26:39,882 INFO L226 Difference]: Without dead ends: 44447 [2022-07-20 02:26:40,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:40,012 INFO L413 NwaCegarLoop]: 3981 mSDtfsCounter, 2625 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 3503 mSolverCounterSat, 2780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 6156 SdHoareTripleChecker+Invalid, 6283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2780 IncrementalHoareTripleChecker+Valid, 3503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:26:40,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 6156 Invalid, 6283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2780 Valid, 3503 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-07-20 02:26:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44447 states. [2022-07-20 02:26:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44447 to 43993. [2022-07-20 02:26:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43993 states, 26382 states have (on average 1.2519141839132741) internal successors, (33028), 26875 states have internal predecessors, (33028), 15358 states have call successors, (15358), 2251 states have call predecessors, (15358), 2251 states have return successors, (15466), 15090 states have call predecessors, (15466), 15358 states have call successors, (15466) [2022-07-20 02:26:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43993 states to 43993 states and 63852 transitions. [2022-07-20 02:26:42,858 INFO L78 Accepts]: Start accepts. Automaton has 43993 states and 63852 transitions. Word has length 292 [2022-07-20 02:26:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:42,858 INFO L495 AbstractCegarLoop]: Abstraction has 43993 states and 63852 transitions. [2022-07-20 02:26:42,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 02:26:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 43993 states and 63852 transitions. [2022-07-20 02:26:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-20 02:26:42,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:42,865 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:26:42,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-20 02:26:42,865 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)] === [2022-07-20 02:26:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash -647184797, now seen corresponding path program 1 times [2022-07-20 02:26:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:26:42,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916661430] [2022-07-20 02:26:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:26:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:26:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:26:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:26:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:26:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:26:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:26:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:26:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:26:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:26:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:26:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 02:26:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:26:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 02:26:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:26:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:26:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:26:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:26:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:26:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 02:26:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 02:26:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:26:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:26:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:26:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:26:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:26:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:26:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 02:26:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-20 02:26:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2022-07-20 02:26:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:26:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916661430] [2022-07-20 02:26:43,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916661430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:26:43,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:26:43,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:26:43,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576480772] [2022-07-20 02:26:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:43,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:43,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:26:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:43,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:26:43,120 INFO L87 Difference]: Start difference. First operand 43993 states and 63852 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 02:26:47,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:26:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:59,033 INFO L93 Difference]: Finished difference Result 98912 states and 143551 transitions. [2022-07-20 02:26:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:26:59,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2022-07-20 02:26:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:59,276 INFO L225 Difference]: With dead ends: 98912 [2022-07-20 02:26:59,277 INFO L226 Difference]: Without dead ends: 54975 [2022-07-20 02:26:59,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:59,427 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 2453 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 4158 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 6987 SdHoareTripleChecker+Invalid, 5836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 4158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:26:59,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3042 Valid, 6987 Invalid, 5836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 4158 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-07-20 02:26:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54975 states. [2022-07-20 02:27:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54975 to 54413. [2022-07-20 02:27:02,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54413 states, 32610 states have (on average 1.2500459981600736) internal successors, (40764), 33207 states have internal predecessors, (40764), 18944 states have call successors, (18944), 2861 states have call predecessors, (18944), 2857 states have return successors, (19052), 18618 states have call predecessors, (19052), 18944 states have call successors, (19052) [2022-07-20 02:27:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54413 states to 54413 states and 78760 transitions. [2022-07-20 02:27:02,795 INFO L78 Accepts]: Start accepts. Automaton has 54413 states and 78760 transitions. Word has length 293 [2022-07-20 02:27:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:02,796 INFO L495 AbstractCegarLoop]: Abstraction has 54413 states and 78760 transitions. [2022-07-20 02:27:02,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 02:27:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 54413 states and 78760 transitions. [2022-07-20 02:27:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-20 02:27:02,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:02,802 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:27:02,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-20 02:27:02,802 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)] === [2022-07-20 02:27:02,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:02,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1100362019, now seen corresponding path program 1 times [2022-07-20 02:27:02,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:27:02,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339747105] [2022-07-20 02:27:02,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:02,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:27:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:27:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:27:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:27:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:27:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:27:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:27:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:27:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:27:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:27:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:27:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:27:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 02:27:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:27:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 02:27:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:27:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:27:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:27:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:27:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 02:27:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-20 02:27:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-20 02:27:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-20 02:27:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-20 02:27:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 02:27:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:27:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:27:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:27:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:27:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:27:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 02:27:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-20 02:27:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:03,060 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-07-20 02:27:03,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:27:03,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339747105] [2022-07-20 02:27:03,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339747105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:27:03,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:27:03,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:27:03,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212001429] [2022-07-20 02:27:03,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:03,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:27:03,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:27:03,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:27:03,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:27:03,064 INFO L87 Difference]: Start difference. First operand 54413 states and 78760 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-20 02:27:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:19,165 INFO L93 Difference]: Finished difference Result 118606 states and 171939 transitions. [2022-07-20 02:27:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:27:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 348 [2022-07-20 02:27:19,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:19,670 INFO L225 Difference]: With dead ends: 118606 [2022-07-20 02:27:19,671 INFO L226 Difference]: Without dead ends: 64249 [2022-07-20 02:27:19,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:27:19,830 INFO L413 NwaCegarLoop]: 3925 mSDtfsCounter, 1987 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 4202 mSolverCounterSat, 1646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 6933 SdHoareTripleChecker+Invalid, 5848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1646 IncrementalHoareTripleChecker+Valid, 4202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:27:19,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 6933 Invalid, 5848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1646 Valid, 4202 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-07-20 02:27:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64249 states. [2022-07-20 02:27:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64249 to 63595. [2022-07-20 02:27:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63595 states, 38058 states have (on average 1.2504072731094644) internal successors, (47588), 38743 states have internal predecessors, (47588), 22206 states have call successors, (22206), 3333 states have call predecessors, (22206), 3329 states have return successors, (22314), 21838 states have call predecessors, (22314), 22206 states have call successors, (22314) [2022-07-20 02:27:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63595 states to 63595 states and 92108 transitions. [2022-07-20 02:27:23,928 INFO L78 Accepts]: Start accepts. Automaton has 63595 states and 92108 transitions. Word has length 348 [2022-07-20 02:27:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:23,929 INFO L495 AbstractCegarLoop]: Abstraction has 63595 states and 92108 transitions. [2022-07-20 02:27:23,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-20 02:27:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 63595 states and 92108 transitions. [2022-07-20 02:27:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-07-20 02:27:23,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:23,935 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 12, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:27:23,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-20 02:27:23,935 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)] === [2022-07-20 02:27:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash -749010844, now seen corresponding path program 1 times [2022-07-20 02:27:23,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:27:23,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665758055] [2022-07-20 02:27:23,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:23,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:27:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:27:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:27:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:27:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:27:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:27:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 02:27:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 02:27:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 02:27:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-20 02:27:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:27:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:27:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 02:27:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:27:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 02:27:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:27:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:27:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:27:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 02:27:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 02:27:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-20 02:27:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-20 02:27:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:27:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-20 02:27:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-20 02:27:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-20 02:27:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 02:27:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:27:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:27:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 02:27:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 02:27:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:27:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-20 02:27:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-20 02:27:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-07-20 02:27:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:27:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665758055] [2022-07-20 02:27:24,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665758055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:27:24,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:27:24,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:27:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531666068] [2022-07-20 02:27:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:24,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:27:24,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:27:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:27:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:27:24,206 INFO L87 Difference]: Start difference. First operand 63595 states and 92108 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-20 02:27:26,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []