./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:26:41,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:26:41,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:26:41,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:26:41,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:26:41,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:26:41,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:26:41,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:26:41,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:26:41,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:26:41,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:26:41,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:26:41,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:26:41,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:26:41,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:26:41,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:26:41,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:26:41,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:26:41,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:26:41,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:26:41,368 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:26:41,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:26:41,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:26:41,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:26:41,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:26:41,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:26:41,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:26:41,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:26:41,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:26:41,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:26:41,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:26:41,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:26:41,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:26:41,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:26:41,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:26:41,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:26:41,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:26:41,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:26:41,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:26:41,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:26:41,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:26:41,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:26:41,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 14:26:41,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:26:41,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:26:41,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:26:41,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:26:41,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:26:41,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:26:41,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:26:41,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:26:41,422 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:26:41,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:26:41,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 14:26:41,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:26:41,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:26:41,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:26:41,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:26:41,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:26:41,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:26:41,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:26:41,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:26:41,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:26:41,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:26:41,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:26:41,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:26:41,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:26:41,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:26:41,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2022-07-21 14:26:41,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:26:41,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:26:41,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:26:41,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:26:41,717 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:26:41,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-21 14:26:41,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7cf819c/f1646291df4f4851bcd249fac1ba4a56/FLAG20eb07200 [2022-07-21 14:26:42,567 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:26:42,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-21 14:26:42,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7cf819c/f1646291df4f4851bcd249fac1ba4a56/FLAG20eb07200 [2022-07-21 14:26:43,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7cf819c/f1646291df4f4851bcd249fac1ba4a56 [2022-07-21 14:26:43,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:26:43,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:26:43,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:26:43,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:26:43,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:26:43,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:26:43" (1/1) ... [2022-07-21 14:26:43,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314e6fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:43, skipping insertion in model container [2022-07-21 14:26:43,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:26:43" (1/1) ... [2022-07-21 14:26:43,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:26:43,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:26:48,694 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-07-21 14:26:48,697 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-07-21 14:26:48,697 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-07-21 14:26:48,698 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-07-21 14:26:48,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:26:48,818 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:26:49,450 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-07-21 14:26:49,451 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-07-21 14:26:49,451 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-07-21 14:26:49,451 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-07-21 14:26:49,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:26:49,859 INFO L208 MainTranslator]: Completed translation [2022-07-21 14:26:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49 WrapperNode [2022-07-21 14:26:49,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 14:26:49,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 14:26:49,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 14:26:49,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 14:26:49,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:49,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,197 INFO L137 Inliner]: procedures = 798, calls = 5637, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 11393 [2022-07-21 14:26:50,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 14:26:50,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 14:26:50,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 14:26:50,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 14:26:50,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 14:26:50,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 14:26:50,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 14:26:50,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 14:26:50,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (1/1) ... [2022-07-21 14:26:50,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:26:50,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 14:26:50,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 14:26:51,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 14:26:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 14:26:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 14:26:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-07-21 14:26:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-07-21 14:26:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-07-21 14:26:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-07-21 14:26:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-07-21 14:26:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-07-21 14:26:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:26:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:26:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-07-21 14:26:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-07-21 14:26:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-07-21 14:26:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-07-21 14:26:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 14:26:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 14:26:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-21 14:26:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-21 14:26:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 14:26:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 14:26:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-07-21 14:26:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-07-21 14:26:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 14:26:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 14:26:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-07-21 14:26:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-07-21 14:26:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-07-21 14:26:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-07-21 14:26:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 14:26:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 14:26:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 14:26:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 14:26:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-07-21 14:26:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-07-21 14:26:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 14:26:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 14:26:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 14:26:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 14:26:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-07-21 14:26:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-07-21 14:26:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-07-21 14:26:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-07-21 14:26:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 14:26:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 14:26:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-07-21 14:26:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-07-21 14:26:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 14:26:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 14:26:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 14:26:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 14:26:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-07-21 14:26:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-07-21 14:26:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 14:26:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-07-21 14:26:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-07-21 14:26:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-07-21 14:26:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-07-21 14:26:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-21 14:26:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-21 14:26:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 14:26:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 14:26:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-21 14:26:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-21 14:26:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 14:26:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 14:26:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 14:26:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 14:26:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 14:26:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 14:26:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-07-21 14:26:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-07-21 14:26:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-21 14:26:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-21 14:26:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:26:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:26:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 14:26:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-07-21 14:26:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-07-21 14:26:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-07-21 14:26:51,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-07-21 14:26:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 14:26:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-07-21 14:26:51,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-07-21 14:26:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-07-21 14:26:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-07-21 14:26:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-07-21 14:26:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-07-21 14:26:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-21 14:26:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 14:26:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-07-21 14:26:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-07-21 14:26:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 14:26:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-07-21 14:26:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-07-21 14:26:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-07-21 14:26:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-07-21 14:26:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-07-21 14:26:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 14:26:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-07-21 14:26:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-07-21 14:26:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-07-21 14:26:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 14:26:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 14:26:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 14:26:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 14:26:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-21 14:26:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-21 14:26:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-07-21 14:26:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-07-21 14:26:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 14:26:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 14:26:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 14:26:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 14:26:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-07-21 14:26:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-07-21 14:26:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-07-21 14:26:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-07-21 14:26:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-07-21 14:26:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-07-21 14:26:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-07-21 14:26:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-07-21 14:26:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-07-21 14:26:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-07-21 14:26:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 14:26:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 14:26:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-07-21 14:26:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-07-21 14:26:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 14:26:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 14:26:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-07-21 14:26:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-07-21 14:26:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 14:26:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 14:26:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 14:26:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 14:26:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-07-21 14:26:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-07-21 14:26:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 14:26:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-21 14:26:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-21 14:26:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-07-21 14:26:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-07-21 14:26:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-21 14:26:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-21 14:26:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-21 14:26:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-21 14:26:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 14:26:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 14:26:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-07-21 14:26:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-07-21 14:26:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 14:26:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-21 14:26:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-21 14:26:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 14:26:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 14:26:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 14:26:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-07-21 14:26:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-07-21 14:26:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 14:26:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 14:26:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 14:26:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 14:26:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 14:26:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 14:26:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-07-21 14:26:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-07-21 14:26:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2022-07-21 14:26:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2022-07-21 14:26:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2022-07-21 14:26:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2022-07-21 14:26:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-21 14:26:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-21 14:26:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-07-21 14:26:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-07-21 14:26:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-07-21 14:26:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-07-21 14:26:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:26:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:26:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-07-21 14:26:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-07-21 14:26:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 14:26:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 14:26:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-07-21 14:26:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-07-21 14:26:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-07-21 14:26:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-07-21 14:26:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 14:26:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 14:26:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-07-21 14:26:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-07-21 14:26:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-07-21 14:26:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-07-21 14:26:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-21 14:26:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-21 14:26:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-07-21 14:26:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-07-21 14:26:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 14:26:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 14:26:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 14:26:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-07-21 14:26:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-07-21 14:26:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:26:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:26:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-07-21 14:26:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-07-21 14:26:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-21 14:26:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-21 14:26:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-07-21 14:26:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-07-21 14:26:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-07-21 14:26:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-07-21 14:26:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-21 14:26:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-21 14:26:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-07-21 14:26:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-07-21 14:26:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-21 14:26:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-21 14:26:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 14:26:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 14:26:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-07-21 14:26:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-07-21 14:26:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-07-21 14:26:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-07-21 14:26:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-21 14:26:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-21 14:26:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-07-21 14:26:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-07-21 14:26:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-21 14:26:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-21 14:26:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-07-21 14:26:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-07-21 14:26:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-21 14:26:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-21 14:26:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-21 14:26:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-21 14:26:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 14:26:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 14:26:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 14:26:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 14:26:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 14:26:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 14:26:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 14:26:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-07-21 14:26:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-07-21 14:26:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 14:26:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 14:26:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 14:26:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 14:26:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-21 14:26:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-21 14:26:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 14:26:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 14:26:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-21 14:26:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-21 14:26:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 14:26:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 14:26:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-07-21 14:26:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-07-21 14:26:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-07-21 14:26:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-07-21 14:26:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 14:26:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 14:26:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-07-21 14:26:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-07-21 14:26:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-07-21 14:26:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-07-21 14:26:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-07-21 14:26:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-07-21 14:26:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 14:26:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 14:26:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-21 14:26:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-21 14:26:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 14:26:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 14:26:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-07-21 14:26:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-07-21 14:26:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 14:26:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 14:26:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-21 14:26:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-21 14:26:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-21 14:26:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-21 14:26:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-07-21 14:26:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-07-21 14:26:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 14:26:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 14:26:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-07-21 14:26:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-07-21 14:26:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 14:26:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 14:26:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-07-21 14:26:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-07-21 14:26:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 14:26:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 14:26:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 14:26:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 14:26:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-07-21 14:26:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-07-21 14:26:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-07-21 14:26:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-07-21 14:26:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-21 14:26:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-21 14:26:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 14:26:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 14:26:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-07-21 14:26:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-07-21 14:26:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 14:26:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-07-21 14:26:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-07-21 14:26:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 14:26:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 14:26:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 14:26:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 14:26:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-07-21 14:26:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-07-21 14:26:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 14:26:52,178 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 14:26:52,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 14:26:52,260 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 14:27:10,346 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 14:27:10,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 14:27:10,367 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-07-21 14:27:10,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:27:10 BoogieIcfgContainer [2022-07-21 14:27:10,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 14:27:10,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 14:27:10,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 14:27:10,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 14:27:10,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:26:43" (1/3) ... [2022-07-21 14:27:10,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a5291a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:27:10, skipping insertion in model container [2022-07-21 14:27:10,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:26:49" (2/3) ... [2022-07-21 14:27:10,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a5291a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:27:10, skipping insertion in model container [2022-07-21 14:27:10,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:27:10" (3/3) ... [2022-07-21 14:27:10,380 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-21 14:27:10,391 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 14:27:10,391 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 14:27:10,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 14:27:10,491 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@5d6ebd63, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1270055a [2022-07-21 14:27:10,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 14:27:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:27:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-21 14:27:10,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:10,524 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:10,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:10,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2044215754, now seen corresponding path program 1 times [2022-07-21 14:27:10,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:27:10,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474987877] [2022-07-21 14:27:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:10,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:27:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:27:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:27:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:27:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:27:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:27:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:27:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 14:27:11,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:27:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474987877] [2022-07-21 14:27:11,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474987877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:11,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:11,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:27:11,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747100167] [2022-07-21 14:27:11,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:11,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:27:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:27:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:27:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:27:11,486 INFO L87 Difference]: Start difference. First operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:27:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:20,943 INFO L93 Difference]: Finished difference Result 8310 states and 12198 transitions. [2022-07-21 14:27:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 14:27:20,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-21 14:27:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:21,015 INFO L225 Difference]: With dead ends: 8310 [2022-07-21 14:27:21,016 INFO L226 Difference]: Without dead ends: 4339 [2022-07-21 14:27:21,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:21,072 INFO L413 NwaCegarLoop]: 5184 mSDtfsCounter, 5904 mSDsluCounter, 8409 mSDsCounter, 0 mSdLazyCounter, 6565 mSolverCounterSat, 2914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6492 SdHoareTripleChecker+Valid, 13593 SdHoareTripleChecker+Invalid, 9479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2914 IncrementalHoareTripleChecker+Valid, 6565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:21,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6492 Valid, 13593 Invalid, 9479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2914 Valid, 6565 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-07-21 14:27:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-07-21 14:27:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4012. [2022-07-21 14:27:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 2646 states have (on average 1.2622826908541194) internal successors, (3340), 2749 states have internal predecessors, (3340), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:27:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 5635 transitions. [2022-07-21 14:27:21,403 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 5635 transitions. Word has length 62 [2022-07-21 14:27:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:21,404 INFO L495 AbstractCegarLoop]: Abstraction has 4012 states and 5635 transitions. [2022-07-21 14:27:21,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:27:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 5635 transitions. [2022-07-21 14:27:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 14:27:21,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:21,413 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:21,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 14:27:21,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1199263874, now seen corresponding path program 1 times [2022-07-21 14:27:21,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:27:21,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689143406] [2022-07-21 14:27:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:27:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:27:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:27:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:27:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:27:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:27:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:27:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:27:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 14:27:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:27:21,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689143406] [2022-07-21 14:27:21,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689143406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:21,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:21,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:27:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800396025] [2022-07-21 14:27:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:21,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:27:21,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:27:21,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:27:21,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:27:21,911 INFO L87 Difference]: Start difference. First operand 4012 states and 5635 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:32,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:32,171 INFO L93 Difference]: Finished difference Result 4343 states and 6178 transitions. [2022-07-21 14:27:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:27:32,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-07-21 14:27:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:32,193 INFO L225 Difference]: With dead ends: 4343 [2022-07-21 14:27:32,193 INFO L226 Difference]: Without dead ends: 4341 [2022-07-21 14:27:32,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:32,197 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5866 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:32,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 13531 Invalid, 9327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2885 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-07-21 14:27:32,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2022-07-21 14:27:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4016. [2022-07-21 14:27:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 2649 states have (on average 1.2619856549641375) internal successors, (3343), 2752 states have internal predecessors, (3343), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:27:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5638 transitions. [2022-07-21 14:27:32,342 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5638 transitions. Word has length 67 [2022-07-21 14:27:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:32,344 INFO L495 AbstractCegarLoop]: Abstraction has 4016 states and 5638 transitions. [2022-07-21 14:27:32,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5638 transitions. [2022-07-21 14:27:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 14:27:32,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:32,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:32,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 14:27:32,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:32,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:32,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1515598710, now seen corresponding path program 1 times [2022-07-21 14:27:32,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:27:32,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066540283] [2022-07-21 14:27:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:32,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:27:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:27:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:27:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:27:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:27:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:27:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:27:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:27:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:27:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:32,682 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-21 14:27:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:27:32,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066540283] [2022-07-21 14:27:32,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066540283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:32,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:32,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:27:32,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834354135] [2022-07-21 14:27:32,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:32,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:27:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:27:32,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:27:32,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:27:32,684 INFO L87 Difference]: Start difference. First operand 4016 states and 5638 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 14:27:40,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:40,666 INFO L93 Difference]: Finished difference Result 4347 states and 6181 transitions. [2022-07-21 14:27:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:27:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-07-21 14:27:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:40,688 INFO L225 Difference]: With dead ends: 4347 [2022-07-21 14:27:40,689 INFO L226 Difference]: Without dead ends: 4345 [2022-07-21 14:27:40,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:40,696 INFO L413 NwaCegarLoop]: 5145 mSDtfsCounter, 5870 mSDsluCounter, 8371 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 13516 SdHoareTripleChecker+Invalid, 9328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:40,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6479 Valid, 13516 Invalid, 9328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2886 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-07-21 14:27:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2022-07-21 14:27:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4020. [2022-07-21 14:27:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 2652 states have (on average 1.2616892911010558) internal successors, (3346), 2755 states have internal predecessors, (3346), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:27:40,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5641 transitions. [2022-07-21 14:27:40,836 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5641 transitions. Word has length 72 [2022-07-21 14:27:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:40,837 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 5641 transitions. [2022-07-21 14:27:40,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 14:27:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5641 transitions. [2022-07-21 14:27:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 14:27:40,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:40,839 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:40,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 14:27:40,839 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)] === [2022-07-21 14:27:40,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:40,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1695765182, now seen corresponding path program 1 times [2022-07-21 14:27:40,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:27:40,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044959242] [2022-07-21 14:27:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:27:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:27:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:27:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:27:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:27:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:27:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:27:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:27:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:27:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:27:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 14:27:41,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:27:41,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044959242] [2022-07-21 14:27:41,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044959242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:41,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:41,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:27:41,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665075627] [2022-07-21 14:27:41,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:41,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:27:41,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:27:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:27:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:27:41,188 INFO L87 Difference]: Start difference. First operand 4020 states and 5641 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 14:27:50,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:27:52,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:27:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:53,159 INFO L93 Difference]: Finished difference Result 4351 states and 6184 transitions. [2022-07-21 14:27:53,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:27:53,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2022-07-21 14:27:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:53,178 INFO L225 Difference]: With dead ends: 4351 [2022-07-21 14:27:53,178 INFO L226 Difference]: Without dead ends: 4349 [2022-07-21 14:27:53,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:53,180 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5870 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2885 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6478 SdHoareTripleChecker+Valid, 13520 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:53,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6478 Valid, 13520 Invalid, 9327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2885 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-07-21 14:27:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2022-07-21 14:27:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 4024. [2022-07-21 14:27:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 2655 states have (on average 1.2613935969868173) internal successors, (3349), 2758 states have internal predecessors, (3349), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:27:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 5644 transitions. [2022-07-21 14:27:53,322 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 5644 transitions. Word has length 77 [2022-07-21 14:27:53,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:53,323 INFO L495 AbstractCegarLoop]: Abstraction has 4024 states and 5644 transitions. [2022-07-21 14:27:53,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 14:27:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 5644 transitions. [2022-07-21 14:27:53,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 14:27:53,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:53,324 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:53,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 14:27:53,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:53,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash 378443594, now seen corresponding path program 1 times [2022-07-21 14:27:53,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:27:53,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343061375] [2022-07-21 14:27:53,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:27:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:27:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:27:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:27:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:27:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:27:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:27:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:27:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:27:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:27:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:27:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:27:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 14:27:53,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:27:53,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343061375] [2022-07-21 14:27:53,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343061375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:53,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:53,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:27:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897423656] [2022-07-21 14:27:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:53,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:27:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:27:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:27:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:27:53,655 INFO L87 Difference]: Start difference. First operand 4024 states and 5644 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 14:28:03,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:05,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:06,079 INFO L93 Difference]: Finished difference Result 4355 states and 6187 transitions. [2022-07-21 14:28:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-21 14:28:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:06,098 INFO L225 Difference]: With dead ends: 4355 [2022-07-21 14:28:06,099 INFO L226 Difference]: Without dead ends: 4353 [2022-07-21 14:28:06,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:06,101 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5869 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2884 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2884 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:06,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6477 Valid, 13523 Invalid, 9326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2884 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-07-21 14:28:06,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2022-07-21 14:28:06,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 4028. [2022-07-21 14:28:06,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2658 states have (on average 1.2610985703536493) internal successors, (3352), 2761 states have internal predecessors, (3352), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:28:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5647 transitions. [2022-07-21 14:28:06,382 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5647 transitions. Word has length 82 [2022-07-21 14:28:06,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:06,383 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 5647 transitions. [2022-07-21 14:28:06,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 14:28:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5647 transitions. [2022-07-21 14:28:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 14:28:06,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:06,390 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:06,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 14:28:06,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash 991355451, now seen corresponding path program 1 times [2022-07-21 14:28:06,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840760787] [2022-07-21 14:28:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:06,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:28:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:28:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:28:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:28:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:28:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:28:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:28:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:28:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:28:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:28:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:28:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:28:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-21 14:28:06,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:28:06,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840760787] [2022-07-21 14:28:06,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840760787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:06,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:06,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:28:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040689688] [2022-07-21 14:28:06,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:06,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:28:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:28:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:28:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:28:06,692 INFO L87 Difference]: Start difference. First operand 4028 states and 5647 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-21 14:28:15,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:17,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:18,385 INFO L93 Difference]: Finished difference Result 4359 states and 6190 transitions. [2022-07-21 14:28:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 102 [2022-07-21 14:28:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:18,404 INFO L225 Difference]: With dead ends: 4359 [2022-07-21 14:28:18,405 INFO L226 Difference]: Without dead ends: 4357 [2022-07-21 14:28:18,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:18,408 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5858 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2883 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2883 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:18,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 13523 Invalid, 9325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2883 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-07-21 14:28:18,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2022-07-21 14:28:18,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4032. [2022-07-21 14:28:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 2661 states have (on average 1.260804208944006) internal successors, (3355), 2764 states have internal predecessors, (3355), 1149 states have call successors, (1149), 220 states have call predecessors, (1149), 219 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:28:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5650 transitions. [2022-07-21 14:28:18,546 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5650 transitions. Word has length 102 [2022-07-21 14:28:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:18,547 INFO L495 AbstractCegarLoop]: Abstraction has 4032 states and 5650 transitions. [2022-07-21 14:28:18,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-21 14:28:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5650 transitions. [2022-07-21 14:28:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 14:28:18,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:18,549 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:18,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 14:28:18,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1707459953, now seen corresponding path program 1 times [2022-07-21 14:28:18,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:18,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070715905] [2022-07-21 14:28:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:18,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:28:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:28:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:28:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:28:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:28:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:28:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:28:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:28:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:28:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:28:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:28:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:28:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:28:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-21 14:28:18,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:28:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070715905] [2022-07-21 14:28:18,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070715905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:18,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:18,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:28:18,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899422411] [2022-07-21 14:28:18,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:18,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:28:18,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:28:18,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:28:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:28:18,848 INFO L87 Difference]: Start difference. First operand 4032 states and 5650 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-21 14:28:26,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:26,602 INFO L93 Difference]: Finished difference Result 4363 states and 6193 transitions. [2022-07-21 14:28:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:26,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 107 [2022-07-21 14:28:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:26,620 INFO L225 Difference]: With dead ends: 4363 [2022-07-21 14:28:26,621 INFO L226 Difference]: Without dead ends: 4361 [2022-07-21 14:28:26,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:26,628 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5855 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:26,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 13531 Invalid, 9322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2880 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-07-21 14:28:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-07-21 14:28:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4036. [2022-07-21 14:28:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 2664 states have (on average 1.2605105105105106) internal successors, (3358), 2767 states have internal predecessors, (3358), 1149 states have call successors, (1149), 221 states have call predecessors, (1149), 220 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:28:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5653 transitions. [2022-07-21 14:28:26,761 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5653 transitions. Word has length 107 [2022-07-21 14:28:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:26,762 INFO L495 AbstractCegarLoop]: Abstraction has 4036 states and 5653 transitions. [2022-07-21 14:28:26,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-21 14:28:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5653 transitions. [2022-07-21 14:28:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 14:28:26,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:26,763 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:26,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 14:28:26,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:26,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1782733118, now seen corresponding path program 1 times [2022-07-21 14:28:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:26,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690278050] [2022-07-21 14:28:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:26,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:28:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:28:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:28:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:28:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:28:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:28:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:28:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:28:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:28:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:28:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:28:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:28:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:28:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 14:28:27,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:28:27,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690278050] [2022-07-21 14:28:27,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690278050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:27,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:27,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:28:27,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050900610] [2022-07-21 14:28:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:27,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:28:27,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:28:27,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:28:27,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:28:27,042 INFO L87 Difference]: Start difference. First operand 4036 states and 5653 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-07-21 14:28:37,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:39,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:39,922 INFO L93 Difference]: Finished difference Result 4367 states and 6196 transitions. [2022-07-21 14:28:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:39,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 97 [2022-07-21 14:28:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:39,938 INFO L225 Difference]: With dead ends: 4367 [2022-07-21 14:28:39,938 INFO L226 Difference]: Without dead ends: 4365 [2022-07-21 14:28:39,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:39,940 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5867 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2879 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 13532 SdHoareTripleChecker+Invalid, 9321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2879 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:39,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 13532 Invalid, 9321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2879 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-07-21 14:28:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2022-07-21 14:28:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4040. [2022-07-21 14:28:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 2667 states have (on average 1.260217472815898) internal successors, (3361), 2770 states have internal predecessors, (3361), 1149 states have call successors, (1149), 222 states have call predecessors, (1149), 221 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:28:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5656 transitions. [2022-07-21 14:28:40,086 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5656 transitions. Word has length 97 [2022-07-21 14:28:40,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:40,087 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5656 transitions. [2022-07-21 14:28:40,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-07-21 14:28:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5656 transitions. [2022-07-21 14:28:40,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 14:28:40,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:40,089 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:40,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 14:28:40,089 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:40,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:40,089 INFO L85 PathProgramCache]: Analyzing trace with hash -581616783, now seen corresponding path program 1 times [2022-07-21 14:28:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:40,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284667351] [2022-07-21 14:28:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:40,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:28:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:28:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:28:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:28:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:28:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:28:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:28:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:28:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:28:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:28:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:28:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:28:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:28:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:28:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:28:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-21 14:28:40,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:28:40,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284667351] [2022-07-21 14:28:40,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284667351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:40,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:40,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:28:40,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755573209] [2022-07-21 14:28:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:40,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:28:40,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:28:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:28:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:28:40,432 INFO L87 Difference]: Start difference. First operand 4040 states and 5656 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:51,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:28:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:51,604 INFO L93 Difference]: Finished difference Result 4371 states and 6199 transitions. [2022-07-21 14:28:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 117 [2022-07-21 14:28:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:51,706 INFO L225 Difference]: With dead ends: 4371 [2022-07-21 14:28:51,707 INFO L226 Difference]: Without dead ends: 4369 [2022-07-21 14:28:51,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:51,710 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 5855 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2878 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 13535 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:51,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6462 Valid, 13535 Invalid, 9320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2878 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-07-21 14:28:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2022-07-21 14:28:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4044. [2022-07-21 14:28:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 2670 states have (on average 1.259925093632959) internal successors, (3364), 2773 states have internal predecessors, (3364), 1149 states have call successors, (1149), 223 states have call predecessors, (1149), 222 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-21 14:28:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 5659 transitions. [2022-07-21 14:28:51,853 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 5659 transitions. Word has length 117 [2022-07-21 14:28:51,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:51,854 INFO L495 AbstractCegarLoop]: Abstraction has 4044 states and 5659 transitions. [2022-07-21 14:28:51,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:51,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 5659 transitions. [2022-07-21 14:28:51,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 14:28:51,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:51,855 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:51,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 14:28:51,856 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:51,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:51,856 INFO L85 PathProgramCache]: Analyzing trace with hash -214088830, now seen corresponding path program 1 times [2022-07-21 14:28:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:51,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355188827] [2022-07-21 14:28:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:51,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:28:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:28:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:28:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:28:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:28:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:28:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:28:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:28:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:28:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:28:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:28:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:28:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:28:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:28:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:28:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:28:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:52,141 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 14:28:52,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:28:52,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355188827] [2022-07-21 14:28:52,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355188827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:52,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:52,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:28:52,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245094552] [2022-07-21 14:28:52,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:52,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:28:52,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:28:52,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:28:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:28:52,143 INFO L87 Difference]: Start difference. First operand 4044 states and 5659 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:59,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:59,659 INFO L93 Difference]: Finished difference Result 4456 states and 6278 transitions. [2022-07-21 14:28:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 14:28:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 107 [2022-07-21 14:28:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:59,676 INFO L225 Difference]: With dead ends: 4456 [2022-07-21 14:28:59,676 INFO L226 Difference]: Without dead ends: 4454 [2022-07-21 14:28:59,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:59,679 INFO L413 NwaCegarLoop]: 5193 mSDtfsCounter, 5416 mSDsluCounter, 8824 mSDsCounter, 0 mSdLazyCounter, 6769 mSolverCounterSat, 2829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5930 SdHoareTripleChecker+Valid, 14017 SdHoareTripleChecker+Invalid, 9598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2829 IncrementalHoareTripleChecker+Valid, 6769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:59,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5930 Valid, 14017 Invalid, 9598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2829 Valid, 6769 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-21 14:28:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-07-21 14:28:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4127. [2022-07-21 14:28:59,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 2726 states have (on average 1.2560528246515041) internal successors, (3424), 2829 states have internal predecessors, (3424), 1158 states have call successors, (1158), 241 states have call predecessors, (1158), 240 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-21 14:28:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5737 transitions. [2022-07-21 14:28:59,837 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5737 transitions. Word has length 107 [2022-07-21 14:28:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:59,838 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5737 transitions. [2022-07-21 14:28:59,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5737 transitions. [2022-07-21 14:28:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-21 14:28:59,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:59,840 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:59,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 14:28:59,840 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:28:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:59,841 INFO L85 PathProgramCache]: Analyzing trace with hash -84221583, now seen corresponding path program 1 times [2022-07-21 14:28:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:28:59,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27715129] [2022-07-21 14:28:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:28:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:29:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:29:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:29:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:29:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:29:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:29:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:29:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:29:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:29:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 14:29:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 14:29:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-21 14:29:00,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:00,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27715129] [2022-07-21 14:29:00,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27715129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:00,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:00,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:29:00,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135534681] [2022-07-21 14:29:00,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:00,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:29:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:29:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:29:00,239 INFO L87 Difference]: Start difference. First operand 4127 states and 5737 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:29:09,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:11,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:29:11,941 INFO L93 Difference]: Finished difference Result 4458 states and 6280 transitions. [2022-07-21 14:29:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:29:11,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 127 [2022-07-21 14:29:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:29:11,957 INFO L225 Difference]: With dead ends: 4458 [2022-07-21 14:29:11,958 INFO L226 Difference]: Without dead ends: 4456 [2022-07-21 14:29:11,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:29:11,961 INFO L413 NwaCegarLoop]: 5149 mSDtfsCounter, 5855 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2876 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 13527 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:29:11,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6464 Valid, 13527 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-07-21 14:29:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2022-07-21 14:29:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4131. [2022-07-21 14:29:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2729 states have (on average 1.2557713448149506) internal successors, (3427), 2832 states have internal predecessors, (3427), 1158 states have call successors, (1158), 242 states have call predecessors, (1158), 241 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-21 14:29:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5740 transitions. [2022-07-21 14:29:12,127 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5740 transitions. Word has length 127 [2022-07-21 14:29:12,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:29:12,128 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5740 transitions. [2022-07-21 14:29:12,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:29:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5740 transitions. [2022-07-21 14:29:12,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 14:29:12,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:29:12,131 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:29:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 14:29:12,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:29:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:29:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash -387866558, now seen corresponding path program 1 times [2022-07-21 14:29:12,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:29:12,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894510950] [2022-07-21 14:29:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:29:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:29:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:29:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:29:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:29:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:29:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:29:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:29:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:29:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:29:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:29:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:29:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:29:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-21 14:29:12,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:12,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894510950] [2022-07-21 14:29:12,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894510950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:12,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:12,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:29:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581442274] [2022-07-21 14:29:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:29:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:29:12,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:29:12,412 INFO L87 Difference]: Start difference. First operand 4131 states and 5740 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:29:21,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:23,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:24,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:29:24,120 INFO L93 Difference]: Finished difference Result 4462 states and 6283 transitions. [2022-07-21 14:29:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:29:24,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 117 [2022-07-21 14:29:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:29:24,135 INFO L225 Difference]: With dead ends: 4462 [2022-07-21 14:29:24,135 INFO L226 Difference]: Without dead ends: 4460 [2022-07-21 14:29:24,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:29:24,137 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5867 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2875 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 13524 SdHoareTripleChecker+Invalid, 9317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2875 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:29:24,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6477 Valid, 13524 Invalid, 9317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2875 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-07-21 14:29:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2022-07-21 14:29:24,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4135. [2022-07-21 14:29:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2732 states have (on average 1.2554904831625182) internal successors, (3430), 2835 states have internal predecessors, (3430), 1158 states have call successors, (1158), 243 states have call predecessors, (1158), 242 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-21 14:29:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5743 transitions. [2022-07-21 14:29:24,310 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5743 transitions. Word has length 117 [2022-07-21 14:29:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:29:24,310 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5743 transitions. [2022-07-21 14:29:24,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:29:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5743 transitions. [2022-07-21 14:29:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 14:29:24,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:29:24,313 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:29:24,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 14:29:24,313 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:29:24,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:29:24,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2092611441, now seen corresponding path program 1 times [2022-07-21 14:29:24,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:29:24,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829432548] [2022-07-21 14:29:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:29:24,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:29:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:29:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:29:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:29:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:29:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:29:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:29:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:29:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:29:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:29:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 14:29:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 14:29:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 14:29:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 14:29:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 14:29:24,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:24,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829432548] [2022-07-21 14:29:24,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829432548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:24,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:24,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:29:24,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193193534] [2022-07-21 14:29:24,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:24,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:29:24,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:24,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:29:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:29:24,658 INFO L87 Difference]: Start difference. First operand 4135 states and 5743 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 14:29:34,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:37,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:29:37,577 INFO L93 Difference]: Finished difference Result 4466 states and 6286 transitions. [2022-07-21 14:29:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:29:37,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 137 [2022-07-21 14:29:37,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:29:37,591 INFO L225 Difference]: With dead ends: 4466 [2022-07-21 14:29:37,591 INFO L226 Difference]: Without dead ends: 4464 [2022-07-21 14:29:37,593 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 [2022-07-21 14:29:37,593 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5858 mSDsluCounter, 8373 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2876 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6466 SdHoareTripleChecker+Valid, 13519 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-21 14:29:37,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6466 Valid, 13519 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-07-21 14:29:37,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2022-07-21 14:29:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 4139. [2022-07-21 14:29:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2735 states have (on average 1.2552102376599634) internal successors, (3433), 2838 states have internal predecessors, (3433), 1158 states have call successors, (1158), 244 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-21 14:29:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5746 transitions. [2022-07-21 14:29:37,758 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5746 transitions. Word has length 137 [2022-07-21 14:29:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:29:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5746 transitions. [2022-07-21 14:29:37,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 14:29:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5746 transitions. [2022-07-21 14:29:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 14:29:37,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:29:37,760 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:29:37,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 14:29:37,761 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:29:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:29:37,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2026870725, now seen corresponding path program 1 times [2022-07-21 14:29:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:29:37,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354045822] [2022-07-21 14:29:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:29:37,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:29:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:29:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:29:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:29:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:29:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:29:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:29:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:29:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:29:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:29:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 14:29:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 14:29:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 14:29:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 14:29:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 14:29:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-07-21 14:29:38,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:38,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354045822] [2022-07-21 14:29:38,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354045822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:38,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:38,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:29:38,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534995671] [2022-07-21 14:29:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:38,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:29:38,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:29:38,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:29:38,109 INFO L87 Difference]: Start difference. First operand 4139 states and 5746 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 14:29:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:29:46,408 INFO L93 Difference]: Finished difference Result 4470 states and 6289 transitions. [2022-07-21 14:29:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:29:46,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2022-07-21 14:29:46,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:29:46,421 INFO L225 Difference]: With dead ends: 4470 [2022-07-21 14:29:46,422 INFO L226 Difference]: Without dead ends: 4466 [2022-07-21 14:29:46,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:29:46,426 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5856 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 13532 SdHoareTripleChecker+Invalid, 9315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-21 14:29:46,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 13532 Invalid, 9315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2873 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-21 14:29:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2022-07-21 14:29:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4141. [2022-07-21 14:29:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 2737 states have (on average 1.2546583850931676) internal successors, (3434), 2839 states have internal predecessors, (3434), 1158 states have call successors, (1158), 245 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-21 14:29:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5747 transitions. [2022-07-21 14:29:46,593 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5747 transitions. Word has length 142 [2022-07-21 14:29:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:29:46,594 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5747 transitions. [2022-07-21 14:29:46,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 14:29:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5747 transitions. [2022-07-21 14:29:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-21 14:29:46,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:29:46,596 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:29:46,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 14:29:46,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:29:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:29:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1140280586, now seen corresponding path program 1 times [2022-07-21 14:29:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:29:46,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713673639] [2022-07-21 14:29:46,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:29:46,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:29:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 14:29:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:29:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 14:29:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 14:29:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 14:29:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 14:29:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 14:29:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 14:29:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 14:29:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 14:29:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 14:29:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 14:29:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 14:29:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 14:29:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-07-21 14:29:46,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:46,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713673639] [2022-07-21 14:29:46,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713673639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:46,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:46,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:29:46,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430268963] [2022-07-21 14:29:46,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:46,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:29:46,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:29:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:29:46,907 INFO L87 Difference]: Start difference. First operand 4141 states and 5747 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 14:29:55,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:29:55,384 INFO L93 Difference]: Finished difference Result 4530 states and 6344 transitions. [2022-07-21 14:29:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 14:29:55,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132 [2022-07-21 14:29:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:29:55,472 INFO L225 Difference]: With dead ends: 4530 [2022-07-21 14:29:55,472 INFO L226 Difference]: Without dead ends: 4370 [2022-07-21 14:29:55,474 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 [2022-07-21 14:29:55,475 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5870 mSDsluCounter, 8416 mSDsCounter, 0 mSdLazyCounter, 6525 mSolverCounterSat, 2882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6472 SdHoareTripleChecker+Valid, 13564 SdHoareTripleChecker+Invalid, 9407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 6525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:29:55,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6472 Valid, 13564 Invalid, 9407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2882 Valid, 6525 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-21 14:29:55,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2022-07-21 14:29:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4041. [2022-07-21 14:29:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4041 states, 2676 states have (on average 1.257847533632287) internal successors, (3366), 2772 states have internal predecessors, (3366), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-21 14:29:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 5610 transitions. [2022-07-21 14:29:55,649 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 5610 transitions. Word has length 132 [2022-07-21 14:29:55,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:29:55,649 INFO L495 AbstractCegarLoop]: Abstraction has 4041 states and 5610 transitions. [2022-07-21 14:29:55,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 14:29:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 5610 transitions. [2022-07-21 14:29:55,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-21 14:29:55,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:29:55,651 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2022-07-21 14:29:55,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 14:29:55,652 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:29:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:29:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash 536943563, now seen corresponding path program 1 times [2022-07-21 14:29:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:29:55,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954005304] [2022-07-21 14:29:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:29:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:29:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:29:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:29:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:29:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:29:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:29:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:29:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:29:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:29:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:29:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:29:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 14:29:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 14:29:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:29:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:29:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 14:29:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:56,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 14:29:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 14:29:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:29:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:29:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 14:29:56,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:29:56,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954005304] [2022-07-21 14:29:56,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954005304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:56,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:56,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 14:29:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616304047] [2022-07-21 14:29:56,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:56,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 14:29:56,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:29:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 14:29:56,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 14:29:56,041 INFO L87 Difference]: Start difference. First operand 4041 states and 5610 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 14:30:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:30:01,651 INFO L93 Difference]: Finished difference Result 8325 states and 11666 transitions. [2022-07-21 14:30:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 14:30:01,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2022-07-21 14:30:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:30:01,682 INFO L225 Difference]: With dead ends: 8325 [2022-07-21 14:30:01,682 INFO L226 Difference]: Without dead ends: 4367 [2022-07-21 14:30:01,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 14:30:01,702 INFO L413 NwaCegarLoop]: 5023 mSDtfsCounter, 1460 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 1235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 10076 SdHoareTripleChecker+Invalid, 5004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:30:01,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 10076 Invalid, 5004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1235 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-21 14:30:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-07-21 14:30:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4042. [2022-07-21 14:30:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4042 states, 2677 states have (on average 1.2577512140455733) internal successors, (3367), 2773 states have internal predecessors, (3367), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-21 14:30:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5611 transitions. [2022-07-21 14:30:01,901 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5611 transitions. Word has length 155 [2022-07-21 14:30:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:30:01,902 INFO L495 AbstractCegarLoop]: Abstraction has 4042 states and 5611 transitions. [2022-07-21 14:30:01,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 14:30:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5611 transitions. [2022-07-21 14:30:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-21 14:30:01,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:30:01,907 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2022-07-21 14:30:01,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 14:30:01,907 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:30:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:30:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1238008141, now seen corresponding path program 1 times [2022-07-21 14:30:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:30:01,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189245993] [2022-07-21 14:30:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:30:01,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:30:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:30:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:30:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:30:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:30:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:30:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:30:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:30:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:30:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 14:30:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 14:30:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 14:30:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 14:30:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 14:30:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 14:30:02,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:30:02,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189245993] [2022-07-21 14:30:02,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189245993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:30:02,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:30:02,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:30:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008297789] [2022-07-21 14:30:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:30:02,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:30:02,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:30:02,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:30:02,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:30:02,409 INFO L87 Difference]: Start difference. First operand 4042 states and 5611 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:30:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:30:10,461 INFO L93 Difference]: Finished difference Result 4375 states and 6155 transitions. [2022-07-21 14:30:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 14:30:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2022-07-21 14:30:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:30:10,477 INFO L225 Difference]: With dead ends: 4375 [2022-07-21 14:30:10,477 INFO L226 Difference]: Without dead ends: 4373 [2022-07-21 14:30:10,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:30:10,480 INFO L413 NwaCegarLoop]: 5049 mSDtfsCounter, 5279 mSDsluCounter, 8534 mSDsCounter, 0 mSdLazyCounter, 6645 mSolverCounterSat, 2745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5776 SdHoareTripleChecker+Valid, 13583 SdHoareTripleChecker+Invalid, 9390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2745 IncrementalHoareTripleChecker+Valid, 6645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-21 14:30:10,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5776 Valid, 13583 Invalid, 9390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2745 Valid, 6645 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-07-21 14:30:10,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2022-07-21 14:30:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4046. [2022-07-21 14:30:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 2680 states have (on average 1.257462686567164) internal successors, (3370), 2776 states have internal predecessors, (3370), 1122 states have call successors, (1122), 242 states have call predecessors, (1122), 242 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-21 14:30:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 5614 transitions. [2022-07-21 14:30:10,657 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 5614 transitions. Word has length 155 [2022-07-21 14:30:10,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:30:10,657 INFO L495 AbstractCegarLoop]: Abstraction has 4046 states and 5614 transitions. [2022-07-21 14:30:10,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:30:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 5614 transitions. [2022-07-21 14:30:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-21 14:30:10,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:30:10,662 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2022-07-21 14:30:10,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 14:30:10,662 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:30:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:30:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1064455726, now seen corresponding path program 1 times [2022-07-21 14:30:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:30:10,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876508330] [2022-07-21 14:30:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:30:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:30:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:30:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:30:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:30:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:30:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:30:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:30:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:30:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:30:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 14:30:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 14:30:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 14:30:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 14:30:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 14:30:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 14:30:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 14:30:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 14:30:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 14:30:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 14:30:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 14:30:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 14:30:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 14:30:11,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:30:11,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876508330] [2022-07-21 14:30:11,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876508330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:30:11,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:30:11,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 14:30:11,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829324633] [2022-07-21 14:30:11,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:30:11,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 14:30:11,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:30:11,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 14:30:11,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 14:30:11,093 INFO L87 Difference]: Start difference. First operand 4046 states and 5614 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 14:30:20,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:30:23,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:30:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:30:24,017 INFO L93 Difference]: Finished difference Result 4379 states and 6158 transitions. [2022-07-21 14:30:24,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 14:30:24,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 204 [2022-07-21 14:30:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:30:24,032 INFO L225 Difference]: With dead ends: 4379 [2022-07-21 14:30:24,032 INFO L226 Difference]: Without dead ends: 4377 [2022-07-21 14:30:24,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:30:24,034 INFO L413 NwaCegarLoop]: 5027 mSDtfsCounter, 5700 mSDsluCounter, 8091 mSDsCounter, 0 mSdLazyCounter, 6418 mSolverCounterSat, 2803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6265 SdHoareTripleChecker+Valid, 13118 SdHoareTripleChecker+Invalid, 9223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2803 IncrementalHoareTripleChecker+Valid, 6418 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-21 14:30:24,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6265 Valid, 13118 Invalid, 9223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2803 Valid, 6418 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-07-21 14:30:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4377 states. [2022-07-21 14:30:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4377 to 4050. [2022-07-21 14:30:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 2683 states have (on average 1.2568020872158032) internal successors, (3372), 2779 states have internal predecessors, (3372), 1122 states have call successors, (1122), 243 states have call predecessors, (1122), 243 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-21 14:30:24,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5616 transitions. [2022-07-21 14:30:24,205 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5616 transitions. Word has length 204 [2022-07-21 14:30:24,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:30:24,205 INFO L495 AbstractCegarLoop]: Abstraction has 4050 states and 5616 transitions. [2022-07-21 14:30:24,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 14:30:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5616 transitions. [2022-07-21 14:30:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 14:30:24,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:30:24,212 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:30:24,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 14:30:24,212 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:30:24,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:30:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash -135921463, now seen corresponding path program 1 times [2022-07-21 14:30:24,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 14:30:24,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518200203] [2022-07-21 14:30:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:30:24,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 14:30:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 14:30:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 14:30:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 14:30:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 14:30:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 14:30:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 14:30:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 14:30:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 14:30:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 14:30:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 14:30:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 14:30:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 14:30:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 14:30:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 14:30:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 14:30:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 14:30:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 14:30:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 14:30:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 14:30:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 14:30:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 14:30:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 14:30:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 14:30:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 14:30:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 14:30:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 14:30:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 14:30:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:30:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-07-21 14:30:24,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 14:30:24,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518200203] [2022-07-21 14:30:24,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518200203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:30:24,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:30:24,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 14:30:24,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240995866] [2022-07-21 14:30:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:30:24,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 14:30:24,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 14:30:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 14:30:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:30:24,675 INFO L87 Difference]: Start difference. First operand 4050 states and 5616 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33)