./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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.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 45704baa505532991d887c6baed8540301aeab31c519983c43b4db9d2f3e9308 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 12:44:34,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 12:44:34,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 12:44:34,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 12:44:34,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 12:44:34,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 12:44:34,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 12:44:34,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 12:44:34,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 12:44:34,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 12:44:34,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 12:44:34,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 12:44:34,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 12:44:34,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 12:44:34,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 12:44:34,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 12:44:34,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 12:44:34,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 12:44:34,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 12:44:34,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 12:44:34,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 12:44:34,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 12:44:34,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 12:44:34,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 12:44:34,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 12:44:34,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 12:44:34,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 12:44:34,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 12:44:34,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 12:44:34,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 12:44:34,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 12:44:34,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 12:44:34,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 12:44:34,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 12:44:34,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 12:44:34,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 12:44:34,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 12:44:34,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 12:44:34,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 12:44:34,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 12:44:34,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 12:44:34,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 12:44:34,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 12:44:34,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 12:44:34,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 12:44:34,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 12:44:34,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 12:44:34,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 12:44:34,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 12:44:34,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 12:44:34,637 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 12:44:34,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 12:44:34,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 12:44:34,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 12:44:34,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 12:44:34,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 12:44:34,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 12:44:34,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 12:44:34,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 12:44:34,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 12:44:34,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 12:44:34,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 12:44:34,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 12:44:34,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 12:44:34,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 12:44:34,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 12:44:34,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 12:44:34,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 12:44:34,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45704baa505532991d887c6baed8540301aeab31c519983c43b4db9d2f3e9308 [2021-12-18 12:44:34,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 12:44:34,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 12:44:34,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 12:44:34,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 12:44:34,926 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 12:44:34,927 INFO L432 ainManager$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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-12-18 12:44:35,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/887e3fe58/a76fb3752e7942c7a1c00df3e88a1d10/FLAGcd450c9df [2021-12-18 12:44:36,054 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 12:44:36,055 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-12-18 12:44:36,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/887e3fe58/a76fb3752e7942c7a1c00df3e88a1d10/FLAGcd450c9df [2021-12-18 12:44:36,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/887e3fe58/a76fb3752e7942c7a1c00df3e88a1d10 [2021-12-18 12:44:36,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 12:44:36,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 12:44:36,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 12:44:36,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 12:44:36,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 12:44:36,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:44:36" (1/1) ... [2021-12-18 12:44:36,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c56fc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:36, skipping insertion in model container [2021-12-18 12:44:36,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:44:36" (1/1) ... [2021-12-18 12:44:36,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 12:44:36,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 12:44:47,223 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910514,910527] [2021-12-18 12:44:47,226 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910683,910696] [2021-12-18 12:44:47,228 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910850,910863] [2021-12-18 12:44:47,229 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[911018,911031] [2021-12-18 12:44:47,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 12:44:47,497 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 12:44:48,370 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910514,910527] [2021-12-18 12:44:48,371 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910683,910696] [2021-12-18 12:44:48,372 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910850,910863] [2021-12-18 12:44:48,372 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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[911018,911031] [2021-12-18 12:44:48,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 12:44:48,885 INFO L208 MainTranslator]: Completed translation [2021-12-18 12:44:48,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48 WrapperNode [2021-12-18 12:44:48,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 12:44:48,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 12:44:48,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 12:44:48,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 12:44:48,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:49,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:49,929 INFO L137 Inliner]: procedures = 701, calls = 10977, calls flagged for inlining = 355, calls inlined = 332, statements flattened = 24750 [2021-12-18 12:44:49,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 12:44:49,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 12:44:49,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 12:44:49,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 12:44:49,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:49,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:50,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:50,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:50,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:50,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:51,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:51,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 12:44:51,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 12:44:51,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 12:44:51,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 12:44:51,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (1/1) ... [2021-12-18 12:44:51,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 12:44:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 12:44:51,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 12:44:51,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 12:44:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2021-12-18 12:44:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2021-12-18 12:44:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2021-12-18 12:44:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2021-12-18 12:44:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2021-12-18 12:44:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2021-12-18 12:44:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 12:44:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 12:44:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 12:44:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 12:44:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2021-12-18 12:44:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2021-12-18 12:44:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2021-12-18 12:44:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2021-12-18 12:44:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-12-18 12:44:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-12-18 12:44:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-12-18 12:44:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-12-18 12:44:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2021-12-18 12:44:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2021-12-18 12:44:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2021-12-18 12:44:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2021-12-18 12:44:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 12:44:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 12:44:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-12-18 12:44:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-12-18 12:44:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-12-18 12:44:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-12-18 12:44:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 12:44:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 12:44:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-18 12:44:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-18 12:44:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-18 12:44:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-18 12:44:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2021-12-18 12:44:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2021-12-18 12:44:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2021-12-18 12:44:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2021-12-18 12:44:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2021-12-18 12:44:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2021-12-18 12:44:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2021-12-18 12:44:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2021-12-18 12:44:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 12:44:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-12-18 12:44:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-12-18 12:44:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 12:44:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 12:44:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2021-12-18 12:44:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2021-12-18 12:44:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2021-12-18 12:44:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2021-12-18 12:44:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 12:44:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 12:44:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 12:44:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 12:44:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2021-12-18 12:44:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2021-12-18 12:44:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2021-12-18 12:44:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2021-12-18 12:44:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2021-12-18 12:44:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2021-12-18 12:44:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 12:44:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2021-12-18 12:44:51,480 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2021-12-18 12:44:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rf_lock_of_rtl_locks [2021-12-18 12:44:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rf_lock_of_rtl_locks [2021-12-18 12:44:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-18 12:44:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-18 12:44:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2021-12-18 12:44:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2021-12-18 12:44:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2021-12-18 12:44:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2021-12-18 12:44:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-12-18 12:44:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-12-18 12:44:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 12:44:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 12:44:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 12:44:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-12-18 12:44:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-12-18 12:44:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 12:44:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 12:44:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-12-18 12:44:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-12-18 12:44:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 12:44:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 12:44:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 12:44:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2021-12-18 12:44:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2021-12-18 12:44:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 12:44:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2021-12-18 12:44:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2021-12-18 12:44:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 12:44:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 12:44:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_fw_clk_off_timer_callback [2021-12-18 12:44:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_fw_clk_off_timer_callback [2021-12-18 12:44:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 12:44:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 12:44:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2021-12-18 12:44:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2021-12-18 12:44:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 12:44:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 12:44:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 12:44:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 12:44:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-12-18 12:44:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-12-18 12:44:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2021-12-18 12:44:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2021-12-18 12:44:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_80 [2021-12-18 12:44:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_80 [2021-12-18 12:44:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2021-12-18 12:44:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2021-12-18 12:44:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-12-18 12:44:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-12-18 12:44:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-18 12:44:51,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-18 12:44:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2021-12-18 12:44:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2021-12-18 12:44:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2021-12-18 12:44:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2021-12-18 12:44:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_74 [2021-12-18 12:44:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_74 [2021-12-18 12:44:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_71 [2021-12-18 12:44:51,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_71 [2021-12-18 12:44:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_70 [2021-12-18 12:44:51,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_70 [2021-12-18 12:44:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2021-12-18 12:44:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2021-12-18 12:44:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-18 12:44:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-18 12:44:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 12:44:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 12:44:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-18 12:44:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-18 12:44:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 12:44:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-12-18 12:44:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-12-18 12:44:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 12:44:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 12:44:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2021-12-18 12:44:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2021-12-18 12:44:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 12:44:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 12:44:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 12:44:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 12:44:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 12:44:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 12:44:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 12:44:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2021-12-18 12:44:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2021-12-18 12:44:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 12:44:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 12:44:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 12:44:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 12:44:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2021-12-18 12:44:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2021-12-18 12:44:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2021-12-18 12:44:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2021-12-18 12:44:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 12:44:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 12:44:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2021-12-18 12:44:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2021-12-18 12:44:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2021-12-18 12:44:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2021-12-18 12:44:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 12:44:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 12:44:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2021-12-18 12:44:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2021-12-18 12:44:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-18 12:44:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-18 12:44:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-12-18 12:44:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-12-18 12:44:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2021-12-18 12:44:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2021-12-18 12:44:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2021-12-18 12:44:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2021-12-18 12:44:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2021-12-18 12:44:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2021-12-18 12:44:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_65 [2021-12-18 12:44:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_65 [2021-12-18 12:44:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2021-12-18 12:44:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2021-12-18 12:44:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2021-12-18 12:44:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2021-12-18 12:44:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2021-12-18 12:44:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2021-12-18 12:44:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2021-12-18 12:44:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2021-12-18 12:44:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 12:44:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 12:44:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 12:44:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 12:44:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2021-12-18 12:44:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2021-12-18 12:44:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2021-12-18 12:44:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2021-12-18 12:44:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_h2c_lock_of_rtl_locks [2021-12-18 12:44:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_h2c_lock_of_rtl_locks [2021-12-18 12:44:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 12:44:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 12:44:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 12:44:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 12:44:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-12-18 12:44:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-12-18 12:44:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-12-18 12:44:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-12-18 12:44:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 12:44:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 12:44:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 12:44:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 12:44:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_6_2 [2021-12-18 12:44:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_6_2 [2021-12-18 12:44:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-12-18 12:44:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-12-18 12:44:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-18 12:44:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-18 12:44:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2021-12-18 12:44:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2021-12-18 12:44:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_65___0 [2021-12-18 12:44:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_65___0 [2021-12-18 12:44:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2021-12-18 12:44:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2021-12-18 12:44:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_antenna_training_callback [2021-12-18 12:44:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_antenna_training_callback [2021-12-18 12:44:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-12-18 12:44:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-12-18 12:44:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2021-12-18 12:44:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2021-12-18 12:44:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-12-18 12:44:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-12-18 12:44:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-12-18 12:44:51,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-12-18 12:44:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 12:44:51,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 12:44:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2021-12-18 12:44:51,513 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2021-12-18 12:44:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 12:44:51,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 12:44:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-12-18 12:44:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-12-18 12:44:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2021-12-18 12:44:51,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2021-12-18 12:44:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-18 12:44:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-18 12:44:51,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2021-12-18 12:44:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2021-12-18 12:44:51,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2021-12-18 12:44:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2021-12-18 12:44:51,518 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2021-12-18 12:44:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2021-12-18 12:44:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2021-12-18 12:44:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2021-12-18 12:44:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2021-12-18 12:44:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2021-12-18 12:44:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 12:44:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 12:44:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2021-12-18 12:44:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2021-12-18 12:44:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65___0 [2021-12-18 12:44:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65___0 [2021-12-18 12:44:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2021-12-18 12:44:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2021-12-18 12:44:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2021-12-18 12:44:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2021-12-18 12:44:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-12-18 12:44:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-12-18 12:44:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-18 12:44:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-18 12:44:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 12:44:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 12:44:51,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 12:44:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-18 12:44:51,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-18 12:44:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-18 12:44:51,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-18 12:44:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2021-12-18 12:44:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2021-12-18 12:44:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___3 [2021-12-18 12:44:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___3 [2021-12-18 12:44:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___0 [2021-12-18 12:44:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___0 [2021-12-18 12:44:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 12:44:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 12:44:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2021-12-18 12:44:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2021-12-18 12:44:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2021-12-18 12:44:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2021-12-18 12:44:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-12-18 12:44:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-12-18 12:44:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2021-12-18 12:44:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2021-12-18 12:44:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-12-18 12:44:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-12-18 12:44:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2021-12-18 12:44:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2021-12-18 12:44:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_off_low_power [2021-12-18 12:44:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_off_low_power [2021-12-18 12:44:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-18 12:44:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-18 12:44:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-12-18 12:44:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-12-18 12:44:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-18 12:44:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-18 12:44:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2021-12-18 12:44:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2021-12-18 12:44:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2021-12-18 12:44:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2021-12-18 12:44:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-18 12:44:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-18 12:44:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_64___0 [2021-12-18 12:44:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_64___0 [2021-12-18 12:44:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-18 12:44:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-18 12:44:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2021-12-18 12:44:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2021-12-18 12:44:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2021-12-18 12:44:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2021-12-18 12:44:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-12-18 12:44:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-12-18 12:44:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2021-12-18 12:44:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2021-12-18 12:44:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 12:44:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2021-12-18 12:44:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2021-12-18 12:44:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 12:44:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 12:44:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-12-18 12:44:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-12-18 12:44:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_64 [2021-12-18 12:44:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_64 [2021-12-18 12:44:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-12-18 12:44:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-12-18 12:44:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2021-12-18 12:44:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2021-12-18 12:44:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2021-12-18 12:44:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2021-12-18 12:44:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-12-18 12:44:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-12-18 12:44:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 12:44:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 12:44:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2021-12-18 12:44:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2021-12-18 12:44:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2021-12-18 12:44:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2021-12-18 12:44:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-18 12:44:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-18 12:44:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2021-12-18 12:44:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2021-12-18 12:44:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-18 12:44:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-18 12:44:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-18 12:44:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-18 12:44:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 12:44:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 12:44:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2021-12-18 12:44:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2021-12-18 12:44:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-18 12:44:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-18 12:44:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-12-18 12:44:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-12-18 12:44:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2021-12-18 12:44:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2021-12-18 12:44:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2021-12-18 12:44:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2021-12-18 12:44:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 12:44:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 12:44:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2021-12-18 12:44:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2021-12-18 12:44:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 12:44:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-12-18 12:44:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-12-18 12:44:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-12-18 12:44:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-12-18 12:44:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 12:44:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 12:44:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2021-12-18 12:44:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2021-12-18 12:44:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-18 12:44:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-18 12:44:53,250 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 12:44:53,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 12:44:53,745 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 12:46:27,445 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 12:46:27,477 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 12:46:27,477 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-18 12:46:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:46:27 BoogieIcfgContainer [2021-12-18 12:46:27,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 12:46:27,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 12:46:27,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 12:46:27,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 12:46:27,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:44:36" (1/3) ... [2021-12-18 12:46:27,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3274467d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:46:27, skipping insertion in model container [2021-12-18 12:46:27,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:44:48" (2/3) ... [2021-12-18 12:46:27,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3274467d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:46:27, skipping insertion in model container [2021-12-18 12:46:27,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:46:27" (3/3) ... [2021-12-18 12:46:27,491 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-12-18 12:46:27,495 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 12:46:27,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 12:46:27,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 12:46:27,577 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 12:46:27,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 12:46:27,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 7329 states, 4957 states have (on average 1.3679644946540246) internal successors, (6781), 5148 states have internal predecessors, (6781), 2197 states have call successors, (2197), 180 states have call predecessors, (2197), 179 states have return successors, (2189), 2108 states have call predecessors, (2189), 2189 states have call successors, (2189) [2021-12-18 12:46:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-18 12:46:27,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:27,709 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 12:46:27,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:27,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1981103035, now seen corresponding path program 1 times [2021-12-18 12:46:27,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:27,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743612386] [2021-12-18 12:46:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:27,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 12:46:29,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:29,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743612386] [2021-12-18 12:46:29,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743612386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:29,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:29,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:29,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6879158] [2021-12-18 12:46:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:29,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:29,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:29,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:29,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:29,314 INFO L87 Difference]: Start difference. First operand has 7329 states, 4957 states have (on average 1.3679644946540246) internal successors, (6781), 5148 states have internal predecessors, (6781), 2197 states have call successors, (2197), 180 states have call predecessors, (2197), 179 states have return successors, (2189), 2108 states have call predecessors, (2189), 2189 states have call successors, (2189) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 12:46:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:29,873 INFO L93 Difference]: Finished difference Result 9560 states and 14671 transitions. [2021-12-18 12:46:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-12-18 12:46:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:29,916 INFO L225 Difference]: With dead ends: 9560 [2021-12-18 12:46:29,917 INFO L226 Difference]: Without dead ends: 4319 [2021-12-18 12:46:29,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:29,959 INFO L933 BasicCegarLoop]: 7063 mSDtfsCounter, 7037 mSDsluCounter, 14108 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 21171 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:29,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7054 Valid, 21171 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2021-12-18 12:46:30,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 4319. [2021-12-18 12:46:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4319 states, 3007 states have (on average 1.3269038909211839) internal successors, (3990), 3102 states have internal predecessors, (3990), 1173 states have call successors, (1173), 143 states have call predecessors, (1173), 136 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4319 states to 4319 states and 6318 transitions. [2021-12-18 12:46:30,352 INFO L78 Accepts]: Start accepts. Automaton has 4319 states and 6318 transitions. Word has length 48 [2021-12-18 12:46:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:30,354 INFO L470 AbstractCegarLoop]: Abstraction has 4319 states and 6318 transitions. [2021-12-18 12:46:30,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 12:46:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 4319 states and 6318 transitions. [2021-12-18 12:46:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-18 12:46:30,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:30,358 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:46:30,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 12:46:30,361 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:30,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1438058696, now seen corresponding path program 1 times [2021-12-18 12:46:30,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:30,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287525515] [2021-12-18 12:46:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:30,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 12:46:31,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:31,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287525515] [2021-12-18 12:46:31,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287525515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:31,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:31,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:31,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849494092] [2021-12-18 12:46:31,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:31,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:31,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:31,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:31,350 INFO L87 Difference]: Start difference. First operand 4319 states and 6318 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 12:46:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:31,646 INFO L93 Difference]: Finished difference Result 4325 states and 6323 transitions. [2021-12-18 12:46:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-12-18 12:46:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:31,680 INFO L225 Difference]: With dead ends: 4325 [2021-12-18 12:46:31,681 INFO L226 Difference]: Without dead ends: 4323 [2021-12-18 12:46:31,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:31,685 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:31,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6297 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2021-12-18 12:46:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4323. [2021-12-18 12:46:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 3010 states have (on average 1.326578073089701) internal successors, (3993), 3105 states have internal predecessors, (3993), 1173 states have call successors, (1173), 144 states have call predecessors, (1173), 137 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 6321 transitions. [2021-12-18 12:46:32,058 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 6321 transitions. Word has length 53 [2021-12-18 12:46:32,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:32,059 INFO L470 AbstractCegarLoop]: Abstraction has 4323 states and 6321 transitions. [2021-12-18 12:46:32,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 12:46:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 6321 transitions. [2021-12-18 12:46:32,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-18 12:46:32,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:32,065 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:46:32,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 12:46:32,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash -224578075, now seen corresponding path program 1 times [2021-12-18 12:46:32,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:32,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648653261] [2021-12-18 12:46:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:32,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 12:46:32,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:32,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648653261] [2021-12-18 12:46:32,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648653261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:32,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:32,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:32,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148172985] [2021-12-18 12:46:32,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:32,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:32,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:32,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:32,912 INFO L87 Difference]: Start difference. First operand 4323 states and 6321 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 12:46:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:33,192 INFO L93 Difference]: Finished difference Result 4329 states and 6326 transitions. [2021-12-18 12:46:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:33,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 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 58 [2021-12-18 12:46:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:33,223 INFO L225 Difference]: With dead ends: 4329 [2021-12-18 12:46:33,223 INFO L226 Difference]: Without dead ends: 4327 [2021-12-18 12:46:33,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:33,230 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:33,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:33,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2021-12-18 12:46:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 4327. [2021-12-18 12:46:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 3013 states have (on average 1.32625290408231) internal successors, (3996), 3108 states have internal predecessors, (3996), 1173 states have call successors, (1173), 145 states have call predecessors, (1173), 138 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 6324 transitions. [2021-12-18 12:46:33,451 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 6324 transitions. Word has length 58 [2021-12-18 12:46:33,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:33,452 INFO L470 AbstractCegarLoop]: Abstraction has 4327 states and 6324 transitions. [2021-12-18 12:46:33,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 12:46:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 6324 transitions. [2021-12-18 12:46:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-18 12:46:33,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:33,455 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 12:46:33,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 12:46:33,455 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:33,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:33,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1898236584, now seen corresponding path program 1 times [2021-12-18 12:46:33,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:33,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408855789] [2021-12-18 12:46:33,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:33,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 12:46:34,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:34,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408855789] [2021-12-18 12:46:34,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408855789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:34,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:34,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:34,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094903158] [2021-12-18 12:46:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:34,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:34,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:34,247 INFO L87 Difference]: Start difference. First operand 4327 states and 6324 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 12:46:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:34,551 INFO L93 Difference]: Finished difference Result 4347 states and 6340 transitions. [2021-12-18 12:46:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:34,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 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 63 [2021-12-18 12:46:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:34,578 INFO L225 Difference]: With dead ends: 4347 [2021-12-18 12:46:34,578 INFO L226 Difference]: Without dead ends: 4345 [2021-12-18 12:46:34,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:34,581 INFO L933 BasicCegarLoop]: 6318 mSDtfsCounter, 6251 mSDsluCounter, 12652 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6264 SdHoareTripleChecker+Valid, 18970 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:34,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6264 Valid, 18970 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2021-12-18 12:46:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4343. [2021-12-18 12:46:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 3025 states have (on average 1.3252892561983471) internal successors, (4009), 3120 states have internal predecessors, (4009), 1173 states have call successors, (1173), 149 states have call predecessors, (1173), 142 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 6337 transitions. [2021-12-18 12:46:34,805 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 6337 transitions. Word has length 63 [2021-12-18 12:46:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:34,806 INFO L470 AbstractCegarLoop]: Abstraction has 4343 states and 6337 transitions. [2021-12-18 12:46:34,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 12:46:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 6337 transitions. [2021-12-18 12:46:34,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-18 12:46:34,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:34,808 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 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] [2021-12-18 12:46:34,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 12:46:34,809 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -921186427, now seen corresponding path program 1 times [2021-12-18 12:46:34,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:34,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305483063] [2021-12-18 12:46:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:34,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 12:46:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-18 12:46:35,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:35,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305483063] [2021-12-18 12:46:35,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305483063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:35,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:35,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:35,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030764090] [2021-12-18 12:46:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:35,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:35,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:35,537 INFO L87 Difference]: Start difference. First operand 4343 states and 6337 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 12:46:35,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:35,793 INFO L93 Difference]: Finished difference Result 4359 states and 6350 transitions. [2021-12-18 12:46:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:35,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 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 68 [2021-12-18 12:46:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:35,823 INFO L225 Difference]: With dead ends: 4359 [2021-12-18 12:46:35,824 INFO L226 Difference]: Without dead ends: 4357 [2021-12-18 12:46:35,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:35,829 INFO L933 BasicCegarLoop]: 6318 mSDtfsCounter, 6245 mSDsluCounter, 12658 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 18976 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:35,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 18976 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:35,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2021-12-18 12:46:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4355. [2021-12-18 12:46:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 3034 states have (on average 1.3246539222148979) internal successors, (4019), 3129 states have internal predecessors, (4019), 1173 states have call successors, (1173), 152 states have call predecessors, (1173), 145 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 6347 transitions. [2021-12-18 12:46:36,057 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 6347 transitions. Word has length 68 [2021-12-18 12:46:36,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:36,057 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 6347 transitions. [2021-12-18 12:46:36,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 12:46:36,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 6347 transitions. [2021-12-18 12:46:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-18 12:46:36,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:36,059 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 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] [2021-12-18 12:46:36,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 12:46:36,059 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1113365368, now seen corresponding path program 1 times [2021-12-18 12:46:36,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:36,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682664022] [2021-12-18 12:46:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:36,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 12:46:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 12:46:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-18 12:46:36,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:36,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682664022] [2021-12-18 12:46:36,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682664022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:36,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:36,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:36,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471028146] [2021-12-18 12:46:36,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:36,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:36,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:36,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:36,783 INFO L87 Difference]: Start difference. First operand 4355 states and 6347 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 12:46:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:37,029 INFO L93 Difference]: Finished difference Result 4384 states and 6370 transitions. [2021-12-18 12:46:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:37,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 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 73 [2021-12-18 12:46:37,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:37,072 INFO L225 Difference]: With dead ends: 4384 [2021-12-18 12:46:37,073 INFO L226 Difference]: Without dead ends: 4382 [2021-12-18 12:46:37,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:37,078 INFO L933 BasicCegarLoop]: 6322 mSDtfsCounter, 6237 mSDsluCounter, 12681 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6248 SdHoareTripleChecker+Valid, 19003 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:37,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6248 Valid, 19003 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2021-12-18 12:46:37,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4380. [2021-12-18 12:46:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 3053 states have (on average 1.3229610219456271) internal successors, (4039), 3148 states have internal predecessors, (4039), 1173 states have call successors, (1173), 158 states have call predecessors, (1173), 151 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:37,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 6367 transitions. [2021-12-18 12:46:37,350 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 6367 transitions. Word has length 73 [2021-12-18 12:46:37,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:37,351 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 6367 transitions. [2021-12-18 12:46:37,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 12:46:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 6367 transitions. [2021-12-18 12:46:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-18 12:46:37,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:37,352 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2021-12-18 12:46:37,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 12:46:37,353 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:37,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:37,354 INFO L85 PathProgramCache]: Analyzing trace with hash -203135594, now seen corresponding path program 1 times [2021-12-18 12:46:37,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:37,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15003813] [2021-12-18 12:46:37,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:37,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-18 12:46:38,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:38,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15003813] [2021-12-18 12:46:38,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15003813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:38,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:38,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:38,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492644363] [2021-12-18 12:46:38,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:38,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:38,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:38,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:38,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:38,221 INFO L87 Difference]: Start difference. First operand 4380 states and 6367 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 12:46:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:38,478 INFO L93 Difference]: Finished difference Result 4386 states and 6372 transitions. [2021-12-18 12:46:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:38,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2021-12-18 12:46:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:38,501 INFO L225 Difference]: With dead ends: 4386 [2021-12-18 12:46:38,501 INFO L226 Difference]: Without dead ends: 4384 [2021-12-18 12:46:38,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:38,504 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6282 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:38,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6282 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:38,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2021-12-18 12:46:38,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4384. [2021-12-18 12:46:38,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 3056 states have (on average 1.3226439790575917) internal successors, (4042), 3151 states have internal predecessors, (4042), 1173 states have call successors, (1173), 159 states have call predecessors, (1173), 152 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-18 12:46:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 6370 transitions. [2021-12-18 12:46:38,757 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 6370 transitions. Word has length 91 [2021-12-18 12:46:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:38,758 INFO L470 AbstractCegarLoop]: Abstraction has 4384 states and 6370 transitions. [2021-12-18 12:46:38,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 12:46:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 6370 transitions. [2021-12-18 12:46:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-18 12:46:38,759 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:38,760 INFO L514 BasicCegarLoop]: 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] [2021-12-18 12:46:38,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 12:46:38,760 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2038357865, now seen corresponding path program 1 times [2021-12-18 12:46:38,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:38,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907656877] [2021-12-18 12:46:38,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:38,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-18 12:46:39,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:39,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907656877] [2021-12-18 12:46:39,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907656877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:39,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:39,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:39,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132012135] [2021-12-18 12:46:39,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:39,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:39,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:39,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:39,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:39,537 INFO L87 Difference]: Start difference. First operand 4384 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 12:46:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:39,806 INFO L93 Difference]: Finished difference Result 4512 states and 6517 transitions. [2021-12-18 12:46:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:39,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 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 96 [2021-12-18 12:46:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:39,827 INFO L225 Difference]: With dead ends: 4512 [2021-12-18 12:46:39,827 INFO L226 Difference]: Without dead ends: 4510 [2021-12-18 12:46:39,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:39,831 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 6256 mSDsluCounter, 12806 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6265 SdHoareTripleChecker+Valid, 19142 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:39,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6265 Valid, 19142 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2021-12-18 12:46:40,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4508. [2021-12-18 12:46:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 3144 states have (on average 1.3180661577608141) internal successors, (4144), 3240 states have internal predecessors, (4144), 1194 states have call successors, (1194), 174 states have call predecessors, (1194), 167 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6514 transitions. [2021-12-18 12:46:40,126 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6514 transitions. Word has length 96 [2021-12-18 12:46:40,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:40,127 INFO L470 AbstractCegarLoop]: Abstraction has 4508 states and 6514 transitions. [2021-12-18 12:46:40,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 12:46:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6514 transitions. [2021-12-18 12:46:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-18 12:46:40,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:40,129 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 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] [2021-12-18 12:46:40,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 12:46:40,130 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:40,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1366504950, now seen corresponding path program 1 times [2021-12-18 12:46:40,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:40,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104807880] [2021-12-18 12:46:40,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:40,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-18 12:46:40,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:40,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104807880] [2021-12-18 12:46:40,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104807880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:40,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:40,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:40,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959213617] [2021-12-18 12:46:40,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:40,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:40,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:40,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:40,920 INFO L87 Difference]: Start difference. First operand 4508 states and 6514 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 12:46:41,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:41,196 INFO L93 Difference]: Finished difference Result 4514 states and 6519 transitions. [2021-12-18 12:46:41,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:41,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 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 101 [2021-12-18 12:46:41,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:41,216 INFO L225 Difference]: With dead ends: 4514 [2021-12-18 12:46:41,216 INFO L226 Difference]: Without dead ends: 4512 [2021-12-18 12:46:41,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:41,221 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6280 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:41,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6280 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:41,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2021-12-18 12:46:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4512. [2021-12-18 12:46:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 3147 states have (on average 1.3177629488401652) internal successors, (4147), 3243 states have internal predecessors, (4147), 1194 states have call successors, (1194), 175 states have call predecessors, (1194), 168 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 6517 transitions. [2021-12-18 12:46:41,515 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 6517 transitions. Word has length 101 [2021-12-18 12:46:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:41,516 INFO L470 AbstractCegarLoop]: Abstraction has 4512 states and 6517 transitions. [2021-12-18 12:46:41,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 12:46:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 6517 transitions. [2021-12-18 12:46:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-18 12:46:41,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:41,518 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:46:41,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 12:46:41,518 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:41,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1768218552, now seen corresponding path program 1 times [2021-12-18 12:46:41,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:41,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062046901] [2021-12-18 12:46:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:41,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 12:46:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 12:46:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 12:46:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 12:46:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 12:46:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 12:46:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-18 12:46:42,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:42,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062046901] [2021-12-18 12:46:42,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062046901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:42,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:42,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:42,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025098257] [2021-12-18 12:46:42,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:42,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:42,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:42,225 INFO L87 Difference]: Start difference. First operand 4512 states and 6517 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 12:46:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:42,627 INFO L93 Difference]: Finished difference Result 4518 states and 6522 transitions. [2021-12-18 12:46:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:42,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 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 93 [2021-12-18 12:46:42,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:42,644 INFO L225 Difference]: With dead ends: 4518 [2021-12-18 12:46:42,644 INFO L226 Difference]: Without dead ends: 4516 [2021-12-18 12:46:42,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:42,646 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6289 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:42,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6289 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:42,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2021-12-18 12:46:42,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4516. [2021-12-18 12:46:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 3150 states have (on average 1.3174603174603174) internal successors, (4150), 3246 states have internal predecessors, (4150), 1194 states have call successors, (1194), 176 states have call predecessors, (1194), 169 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6520 transitions. [2021-12-18 12:46:42,921 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6520 transitions. Word has length 93 [2021-12-18 12:46:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:42,921 INFO L470 AbstractCegarLoop]: Abstraction has 4516 states and 6520 transitions. [2021-12-18 12:46:42,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 12:46:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6520 transitions. [2021-12-18 12:46:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-18 12:46:42,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:42,927 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 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] [2021-12-18 12:46:42,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 12:46:42,927 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1592966742, now seen corresponding path program 1 times [2021-12-18 12:46:42,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:42,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020624624] [2021-12-18 12:46:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:42,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 12:46:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-18 12:46:43,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020624624] [2021-12-18 12:46:43,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020624624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:43,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:43,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:43,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717843058] [2021-12-18 12:46:43,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:43,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:43,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:43,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:43,722 INFO L87 Difference]: Start difference. First operand 4516 states and 6520 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 12:46:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:44,007 INFO L93 Difference]: Finished difference Result 4522 states and 6525 transitions. [2021-12-18 12:46:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:44,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 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 111 [2021-12-18 12:46:44,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:44,028 INFO L225 Difference]: With dead ends: 4522 [2021-12-18 12:46:44,028 INFO L226 Difference]: Without dead ends: 4520 [2021-12-18 12:46:44,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:44,032 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6278 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:44,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6278 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:44,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4520 states. [2021-12-18 12:46:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4520 to 4520. [2021-12-18 12:46:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 3153 states have (on average 1.3171582619727245) internal successors, (4153), 3249 states have internal predecessors, (4153), 1194 states have call successors, (1194), 177 states have call predecessors, (1194), 170 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:44,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 6523 transitions. [2021-12-18 12:46:44,320 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 6523 transitions. Word has length 111 [2021-12-18 12:46:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:44,320 INFO L470 AbstractCegarLoop]: Abstraction has 4520 states and 6523 transitions. [2021-12-18 12:46:44,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 12:46:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 6523 transitions. [2021-12-18 12:46:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-18 12:46:44,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:44,322 INFO L514 BasicCegarLoop]: 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] [2021-12-18 12:46:44,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 12:46:44,323 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:44,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1187028695, now seen corresponding path program 1 times [2021-12-18 12:46:44,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:44,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439939564] [2021-12-18 12:46:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:44,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 12:46:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 12:46:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 12:46:45,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:45,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439939564] [2021-12-18 12:46:45,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439939564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:45,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:45,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:45,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760683338] [2021-12-18 12:46:45,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:45,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:45,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:45,062 INFO L87 Difference]: Start difference. First operand 4520 states and 6523 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 12:46:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:45,339 INFO L93 Difference]: Finished difference Result 4526 states and 6528 transitions. [2021-12-18 12:46:45,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:45,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-12-18 12:46:45,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:45,358 INFO L225 Difference]: With dead ends: 4526 [2021-12-18 12:46:45,359 INFO L226 Difference]: Without dead ends: 4524 [2021-12-18 12:46:45,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:45,362 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6277 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:45,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6277 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2021-12-18 12:46:45,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4524. [2021-12-18 12:46:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 3156 states have (on average 1.3168567807351077) internal successors, (4156), 3252 states have internal predecessors, (4156), 1194 states have call successors, (1194), 178 states have call predecessors, (1194), 171 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6526 transitions. [2021-12-18 12:46:45,651 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6526 transitions. Word has length 116 [2021-12-18 12:46:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:45,651 INFO L470 AbstractCegarLoop]: Abstraction has 4524 states and 6526 transitions. [2021-12-18 12:46:45,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 12:46:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6526 transitions. [2021-12-18 12:46:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-18 12:46:45,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:45,654 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 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] [2021-12-18 12:46:45,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 12:46:45,654 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:45,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1356660406, now seen corresponding path program 1 times [2021-12-18 12:46:45,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:45,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768394128] [2021-12-18 12:46:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:45,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 12:46:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 12:46:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 12:46:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-18 12:46:46,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:46,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768394128] [2021-12-18 12:46:46,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768394128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:46,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:46,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:46,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749378703] [2021-12-18 12:46:46,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:46,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:46,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:46,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:46,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:46,436 INFO L87 Difference]: Start difference. First operand 4524 states and 6526 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 12:46:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:46,725 INFO L93 Difference]: Finished difference Result 4530 states and 6531 transitions. [2021-12-18 12:46:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:46,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 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 121 [2021-12-18 12:46:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:46,750 INFO L225 Difference]: With dead ends: 4530 [2021-12-18 12:46:46,751 INFO L226 Difference]: Without dead ends: 4528 [2021-12-18 12:46:46,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:46,756 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:46,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6276 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 12:46:46,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-12-18 12:46:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-12-18 12:46:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 3159 states have (on average 1.3165558721114277) internal successors, (4159), 3255 states have internal predecessors, (4159), 1194 states have call successors, (1194), 179 states have call predecessors, (1194), 172 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 6529 transitions. [2021-12-18 12:46:47,223 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 6529 transitions. Word has length 121 [2021-12-18 12:46:47,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:47,224 INFO L470 AbstractCegarLoop]: Abstraction has 4528 states and 6529 transitions. [2021-12-18 12:46:47,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 12:46:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 6529 transitions. [2021-12-18 12:46:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-18 12:46:47,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:47,227 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:46:47,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 12:46:47,227 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1227766792, now seen corresponding path program 1 times [2021-12-18 12:46:47,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:47,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731404086] [2021-12-18 12:46:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:47,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 12:46:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 12:46:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 12:46:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 12:46:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 12:46:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 12:46:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 12:46:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 12:46:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 12:46:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 12:46:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-18 12:46:47,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:47,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731404086] [2021-12-18 12:46:47,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731404086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:47,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:47,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:47,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560047801] [2021-12-18 12:46:47,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:47,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:47,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:47,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:47,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:47,950 INFO L87 Difference]: Start difference. First operand 4528 states and 6529 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 12:46:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:48,205 INFO L93 Difference]: Finished difference Result 4534 states and 6534 transitions. [2021-12-18 12:46:48,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:48,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 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 113 [2021-12-18 12:46:48,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:48,225 INFO L225 Difference]: With dead ends: 4534 [2021-12-18 12:46:48,225 INFO L226 Difference]: Without dead ends: 4532 [2021-12-18 12:46:48,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:48,228 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:48,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6285 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-12-18 12:46:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-12-18 12:46:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3162 states have (on average 1.3162555344718532) internal successors, (4162), 3258 states have internal predecessors, (4162), 1194 states have call successors, (1194), 180 states have call predecessors, (1194), 173 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:48,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6532 transitions. [2021-12-18 12:46:48,535 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6532 transitions. Word has length 113 [2021-12-18 12:46:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:48,536 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 6532 transitions. [2021-12-18 12:46:48,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 12:46:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6532 transitions. [2021-12-18 12:46:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-18 12:46:48,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:48,539 INFO L514 BasicCegarLoop]: 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] [2021-12-18 12:46:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 12:46:48,539 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1960052970, now seen corresponding path program 1 times [2021-12-18 12:46:48,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578072332] [2021-12-18 12:46:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:48,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 12:46:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 12:46:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 12:46:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 12:46:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 12:46:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-18 12:46:49,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:49,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578072332] [2021-12-18 12:46:49,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578072332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:49,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:49,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:49,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924790042] [2021-12-18 12:46:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:49,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:49,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:49,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:49,279 INFO L87 Difference]: Start difference. First operand 4532 states and 6532 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:46:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:49,545 INFO L93 Difference]: Finished difference Result 4544 states and 6541 transitions. [2021-12-18 12:46:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:49,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 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 131 [2021-12-18 12:46:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:49,568 INFO L225 Difference]: With dead ends: 4544 [2021-12-18 12:46:49,568 INFO L226 Difference]: Without dead ends: 4542 [2021-12-18 12:46:49,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:49,573 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6249 mSDsluCounter, 12635 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6251 SdHoareTripleChecker+Valid, 18950 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:49,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6251 Valid, 18950 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:49,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-12-18 12:46:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4540. [2021-12-18 12:46:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 3168 states have (on average 1.3156565656565657) internal successors, (4168), 3264 states have internal predecessors, (4168), 1194 states have call successors, (1194), 182 states have call predecessors, (1194), 175 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6538 transitions. [2021-12-18 12:46:49,880 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6538 transitions. Word has length 131 [2021-12-18 12:46:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:49,880 INFO L470 AbstractCegarLoop]: Abstraction has 4540 states and 6538 transitions. [2021-12-18 12:46:49,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:46:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6538 transitions. [2021-12-18 12:46:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-18 12:46:49,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:49,884 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:46:49,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 12:46:49,884 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:49,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1397689832, now seen corresponding path program 1 times [2021-12-18 12:46:49,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:49,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025550506] [2021-12-18 12:46:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:49,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 12:46:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 12:46:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 12:46:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 12:46:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 12:46:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 12:46:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 12:46:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 12:46:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 12:46:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 12:46:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 12:46:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 12:46:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:46:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 12:46:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 12:46:50,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:50,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025550506] [2021-12-18 12:46:50,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025550506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:50,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:50,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:50,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965637480] [2021-12-18 12:46:50,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:50,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:50,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:50,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:50,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:50,599 INFO L87 Difference]: Start difference. First operand 4540 states and 6538 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:46:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:51,002 INFO L93 Difference]: Finished difference Result 4546 states and 6543 transitions. [2021-12-18 12:46:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:51,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 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 123 [2021-12-18 12:46:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:51,018 INFO L225 Difference]: With dead ends: 4546 [2021-12-18 12:46:51,018 INFO L226 Difference]: Without dead ends: 4542 [2021-12-18 12:46:51,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:51,020 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6283 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:51,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6283 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-12-18 12:46:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4542. [2021-12-18 12:46:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 3170 states have (on average 1.315141955835962) internal successors, (4169), 3265 states have internal predecessors, (4169), 1194 states have call successors, (1194), 183 states have call predecessors, (1194), 175 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-12-18 12:46:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6539 transitions. [2021-12-18 12:46:51,409 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6539 transitions. Word has length 123 [2021-12-18 12:46:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:51,410 INFO L470 AbstractCegarLoop]: Abstraction has 4542 states and 6539 transitions. [2021-12-18 12:46:51,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:46:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6539 transitions. [2021-12-18 12:46:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-18 12:46:51,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:51,414 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 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, 1, 1, 1] [2021-12-18 12:46:51,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 12:46:51,414 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:46:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1096394614, now seen corresponding path program 1 times [2021-12-18 12:46:51,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:51,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383613278] [2021-12-18 12:46:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:51,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 12:46:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 12:46:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 12:46:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 12:46:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 12:46:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 12:46:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 12:46:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 12:46:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 12:46:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 12:46:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 12:46:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 12:46:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 12:46:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 12:46:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 12:46:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-12-18 12:46:52,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:52,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383613278] [2021-12-18 12:46:52,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383613278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:52,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:52,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 12:46:52,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134273555] [2021-12-18 12:46:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:52,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 12:46:52,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 12:46:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 12:46:52,310 INFO L87 Difference]: Start difference. First operand 4542 states and 6539 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:46:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:46:52,586 INFO L93 Difference]: Finished difference Result 4542 states and 6539 transitions. [2021-12-18 12:46:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 12:46:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2021-12-18 12:46:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:46:52,604 INFO L225 Difference]: With dead ends: 4542 [2021-12-18 12:46:52,604 INFO L226 Difference]: Without dead ends: 4443 [2021-12-18 12:46:52,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:46:52,607 INFO L933 BasicCegarLoop]: 6313 mSDtfsCounter, 6268 mSDsluCounter, 12605 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6268 SdHoareTripleChecker+Valid, 18918 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:46:52,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6268 Valid, 18918 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 12:46:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2021-12-18 12:46:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4443. [2021-12-18 12:46:52,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 3108 states have (on average 1.3204633204633205) internal successors, (4104), 3201 states have internal predecessors, (4104), 1174 states have call successors, (1174), 165 states have call predecessors, (1174), 159 states have return successors, (1159), 1117 states have call predecessors, (1159), 1159 states have call successors, (1159) [2021-12-18 12:46:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6437 transitions. [2021-12-18 12:46:52,904 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6437 transitions. Word has length 141 [2021-12-18 12:46:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:46:52,905 INFO L470 AbstractCegarLoop]: Abstraction has 4443 states and 6437 transitions. [2021-12-18 12:46:52,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:46:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6437 transitions. [2021-12-18 12:46:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 12:46:52,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:46:52,910 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2021-12-18 12:46:52,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 12:46:52,910 INFO L402 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)] === [2021-12-18 12:46:52,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:46:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2008433797, now seen corresponding path program 1 times [2021-12-18 12:46:52,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:46:52,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004876391] [2021-12-18 12:46:52,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:46:52,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:46:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:46:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:46:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:46:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:46:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:46:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:46:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:46:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:46:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:46:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:46:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:46:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:46:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:46:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:46:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:46:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:46:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 12:46:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:46:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 12:46:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:46:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:46:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 12:46:54,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:46:54,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004876391] [2021-12-18 12:46:54,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004876391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:46:54,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:46:54,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 12:46:54,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206881467] [2021-12-18 12:46:54,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:46:54,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 12:46:54,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:46:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 12:46:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-18 12:46:54,566 INFO L87 Difference]: Start difference. First operand 4443 states and 6437 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 3 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 12:46:58,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:46:59,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:01,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:04,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:18,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:30,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:32,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:34,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:36,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:38,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:47:41,974 INFO L93 Difference]: Finished difference Result 9080 states and 13294 transitions. [2021-12-18 12:47:41,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 12:47:41,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 3 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2021-12-18 12:47:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:47:42,001 INFO L225 Difference]: With dead ends: 9080 [2021-12-18 12:47:42,001 INFO L226 Difference]: Without dead ends: 4656 [2021-12-18 12:47:42,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-12-18 12:47:42,022 INFO L933 BasicCegarLoop]: 4984 mSDtfsCounter, 12947 mSDsluCounter, 13835 mSDsCounter, 0 mSdLazyCounter, 12523 mSolverCounterSat, 9435 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13245 SdHoareTripleChecker+Valid, 18819 SdHoareTripleChecker+Invalid, 21967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9435 IncrementalHoareTripleChecker+Valid, 12523 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2021-12-18 12:47:42,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13245 Valid, 18819 Invalid, 21967 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9435 Valid, 12523 Invalid, 9 Unknown, 0 Unchecked, 46.4s Time] [2021-12-18 12:47:42,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2021-12-18 12:47:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4449. [2021-12-18 12:47:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 3113 states have (on average 1.319948602634115) internal successors, (4109), 3206 states have internal predecessors, (4109), 1174 states have call successors, (1174), 166 states have call predecessors, (1174), 160 states have return successors, (1159), 1117 states have call predecessors, (1159), 1159 states have call successors, (1159) [2021-12-18 12:47:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6442 transitions. [2021-12-18 12:47:42,441 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6442 transitions. Word has length 164 [2021-12-18 12:47:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:47:42,442 INFO L470 AbstractCegarLoop]: Abstraction has 4449 states and 6442 transitions. [2021-12-18 12:47:42,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 3 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 12:47:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6442 transitions. [2021-12-18 12:47:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-18 12:47:42,449 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:47:42,449 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:47:42,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 12:47:42,450 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:47:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:47:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash 89736876, now seen corresponding path program 1 times [2021-12-18 12:47:42,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:47:42,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353445916] [2021-12-18 12:47:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:47:42,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:47:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:47:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:47:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:47:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:47:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:47:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:47:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:47:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:47:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:47:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:47:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:47:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:47:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 12:47:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:47:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:47:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:47:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 12:47:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 12:47:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 12:47:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:47:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:47:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 12:47:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 12:47:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 12:47:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 12:47:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 12:47:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 12:47:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:47:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-18 12:47:43,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:47:43,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353445916] [2021-12-18 12:47:43,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353445916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:47:43,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:47:43,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 12:47:43,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635883786] [2021-12-18 12:47:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:47:43,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 12:47:43,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:47:43,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 12:47:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 12:47:43,594 INFO L87 Difference]: Start difference. First operand 4449 states and 6442 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:47:50,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:57,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:47:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:47:59,529 INFO L93 Difference]: Finished difference Result 4524 states and 6571 transitions. [2021-12-18 12:47:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 12:47:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2021-12-18 12:47:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:47:59,554 INFO L225 Difference]: With dead ends: 4524 [2021-12-18 12:47:59,554 INFO L226 Difference]: Without dead ends: 4431 [2021-12-18 12:47:59,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 12:47:59,560 INFO L933 BasicCegarLoop]: 5965 mSDtfsCounter, 5888 mSDsluCounter, 13668 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 2068 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6616 SdHoareTripleChecker+Valid, 19633 SdHoareTripleChecker+Invalid, 5242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2068 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-12-18 12:47:59,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6616 Valid, 19633 Invalid, 5242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2068 Valid, 3172 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2021-12-18 12:47:59,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2021-12-18 12:47:59,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4362. [2021-12-18 12:47:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3062 states have (on average 1.3190725016329197) internal successors, (4039), 3149 states have internal predecessors, (4039), 1138 states have call successors, (1138), 162 states have call predecessors, (1138), 160 states have return successors, (1133), 1091 states have call predecessors, (1133), 1133 states have call successors, (1133) [2021-12-18 12:47:59,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6310 transitions. [2021-12-18 12:47:59,934 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6310 transitions. Word has length 173 [2021-12-18 12:47:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:47:59,935 INFO L470 AbstractCegarLoop]: Abstraction has 4362 states and 6310 transitions. [2021-12-18 12:47:59,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:47:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6310 transitions. [2021-12-18 12:47:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-18 12:47:59,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:47:59,943 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:47:59,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 12:47:59,943 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:47:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:47:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -709148465, now seen corresponding path program 1 times [2021-12-18 12:47:59,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:47:59,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355486962] [2021-12-18 12:47:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:47:59,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:48:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:48:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:48:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:48:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:48:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:48:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:48:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:48:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:48:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:48:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:48:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:48:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:48:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:48:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:48:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:48:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:48:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:48:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:48:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 12:48:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:48:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-18 12:48:01,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:48:01,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355486962] [2021-12-18 12:48:01,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355486962] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 12:48:01,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884979522] [2021-12-18 12:48:01,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:48:01,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 12:48:01,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 12:48:01,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 12:48:01,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 12:48:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:48:05,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 12839 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-18 12:48:05,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 12:48:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-18 12:48:06,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 12:48:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-18 12:48:07,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884979522] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 12:48:07,768 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 12:48:07,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 6] total 11 [2021-12-18 12:48:07,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588679750] [2021-12-18 12:48:07,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 12:48:07,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 12:48:07,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:48:07,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 12:48:07,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-18 12:48:07,770 INFO L87 Difference]: Start difference. First operand 4362 states and 6310 transitions. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-12-18 12:48:11,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:13,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:15,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:35,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:37,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:53,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:55,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:57,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:48:59,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:49:03,871 INFO L93 Difference]: Finished difference Result 4567 states and 6659 transitions. [2021-12-18 12:49:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 12:49:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 188 [2021-12-18 12:49:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:49:03,893 INFO L225 Difference]: With dead ends: 4567 [2021-12-18 12:49:03,893 INFO L226 Difference]: Without dead ends: 4565 [2021-12-18 12:49:03,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 416 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-12-18 12:49:03,896 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 11939 mSDsluCounter, 13621 mSDsCounter, 0 mSdLazyCounter, 12232 mSolverCounterSat, 7745 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12230 SdHoareTripleChecker+Valid, 18525 SdHoareTripleChecker+Invalid, 19986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7745 IncrementalHoareTripleChecker+Valid, 12232 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2021-12-18 12:49:03,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12230 Valid, 18525 Invalid, 19986 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7745 Valid, 12232 Invalid, 9 Unknown, 0 Unchecked, 54.9s Time] [2021-12-18 12:49:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2021-12-18 12:49:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4366. [2021-12-18 12:49:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4366 states, 3065 states have (on average 1.3187601957585644) internal successors, (4042), 3152 states have internal predecessors, (4042), 1138 states have call successors, (1138), 163 states have call predecessors, (1138), 161 states have return successors, (1133), 1091 states have call predecessors, (1133), 1133 states have call successors, (1133) [2021-12-18 12:49:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 6313 transitions. [2021-12-18 12:49:04,236 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 6313 transitions. Word has length 188 [2021-12-18 12:49:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:49:04,237 INFO L470 AbstractCegarLoop]: Abstraction has 4366 states and 6313 transitions. [2021-12-18 12:49:04,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-12-18 12:49:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 6313 transitions. [2021-12-18 12:49:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 12:49:04,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:49:04,245 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:49:04,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 12:49:04,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 12:49:04,465 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:49:04,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:49:04,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1515136554, now seen corresponding path program 1 times [2021-12-18 12:49:04,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:49:04,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129806216] [2021-12-18 12:49:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:49:04,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:49:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:49:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:49:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:49:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:49:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:49:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:49:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:49:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:49:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:49:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:49:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:49:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:49:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:49:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:49:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:49:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:49:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:49:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:49:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 12:49:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:49:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 12:49:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:49:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 12:49:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:49:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:49:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 12:49:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:49:05,675 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-18 12:49:05,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:49:05,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129806216] [2021-12-18 12:49:05,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129806216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:49:05,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:49:05,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 12:49:05,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386801470] [2021-12-18 12:49:05,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:49:05,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 12:49:05,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:49:05,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 12:49:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:49:05,679 INFO L87 Difference]: Start difference. First operand 4366 states and 6313 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 12:49:09,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:11,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:13,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:15,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:17,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:35,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:51,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:53,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:55,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:57,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:49:59,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:02,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:50:02,847 INFO L93 Difference]: Finished difference Result 4567 states and 6659 transitions. [2021-12-18 12:50:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 12:50:02,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 186 [2021-12-18 12:50:02,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:50:02,866 INFO L225 Difference]: With dead ends: 4567 [2021-12-18 12:50:02,866 INFO L226 Difference]: Without dead ends: 4495 [2021-12-18 12:50:02,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-12-18 12:50:02,869 INFO L933 BasicCegarLoop]: 5194 mSDtfsCounter, 4419 mSDsluCounter, 13348 mSDsCounter, 0 mSdLazyCounter, 12099 mSolverCounterSat, 4222 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5111 SdHoareTripleChecker+Valid, 18542 SdHoareTripleChecker+Invalid, 16331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4222 IncrementalHoareTripleChecker+Valid, 12099 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:50:02,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5111 Valid, 18542 Invalid, 16331 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4222 Valid, 12099 Invalid, 10 Unknown, 0 Unchecked, 56.0s Time] [2021-12-18 12:50:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2021-12-18 12:50:03,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 4307. [2021-12-18 12:50:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 3022 states have (on average 1.3203176704169424) internal successors, (3990), 3108 states have internal predecessors, (3990), 1128 states have call successors, (1128), 157 states have call predecessors, (1128), 155 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:50:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 6242 transitions. [2021-12-18 12:50:03,149 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 6242 transitions. Word has length 186 [2021-12-18 12:50:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:50:03,150 INFO L470 AbstractCegarLoop]: Abstraction has 4307 states and 6242 transitions. [2021-12-18 12:50:03,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 12:50:03,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 6242 transitions. [2021-12-18 12:50:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 12:50:03,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:50:03,160 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2021-12-18 12:50:03,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 12:50:03,161 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:50:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:50:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash 801577946, now seen corresponding path program 1 times [2021-12-18 12:50:03,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:50:03,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948818699] [2021-12-18 12:50:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:50:03,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:50:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:50:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:50:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:50:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:50:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:50:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:50:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:50:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:50:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:50:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:50:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:50:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 12:50:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 12:50:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 12:50:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-18 12:50:03,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:50:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948818699] [2021-12-18 12:50:03,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948818699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:50:03,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:50:03,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 12:50:03,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493287408] [2021-12-18 12:50:03,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:50:03,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 12:50:03,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:50:03,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 12:50:03,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 12:50:03,928 INFO L87 Difference]: Start difference. First operand 4307 states and 6242 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 12:50:06,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:17,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:19,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:30,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:32,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:35,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:37,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:50:37,316 INFO L93 Difference]: Finished difference Result 4605 states and 6759 transitions. [2021-12-18 12:50:37,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 12:50:37,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2021-12-18 12:50:37,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:50:37,336 INFO L225 Difference]: With dead ends: 4605 [2021-12-18 12:50:37,337 INFO L226 Difference]: Without dead ends: 4603 [2021-12-18 12:50:37,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-12-18 12:50:37,341 INFO L933 BasicCegarLoop]: 5506 mSDtfsCounter, 6816 mSDsluCounter, 14761 mSDsCounter, 0 mSdLazyCounter, 6122 mSolverCounterSat, 3948 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7481 SdHoareTripleChecker+Valid, 20267 SdHoareTripleChecker+Invalid, 10076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3948 IncrementalHoareTripleChecker+Valid, 6122 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-12-18 12:50:37,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7481 Valid, 20267 Invalid, 10076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3948 Valid, 6122 Invalid, 6 Unknown, 0 Unchecked, 32.7s Time] [2021-12-18 12:50:37,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2021-12-18 12:50:37,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4311. [2021-12-18 12:50:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 3025 states have (on average 1.32) internal successors, (3993), 3111 states have internal predecessors, (3993), 1128 states have call successors, (1128), 158 states have call predecessors, (1128), 156 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:50:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 6245 transitions. [2021-12-18 12:50:37,695 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 6245 transitions. Word has length 184 [2021-12-18 12:50:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:50:37,695 INFO L470 AbstractCegarLoop]: Abstraction has 4311 states and 6245 transitions. [2021-12-18 12:50:37,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 12:50:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 6245 transitions. [2021-12-18 12:50:37,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-18 12:50:37,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:50:37,706 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:50:37,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 12:50:37,706 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:50:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:50:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash 829456136, now seen corresponding path program 1 times [2021-12-18 12:50:37,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:50:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3604834] [2021-12-18 12:50:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:50:37,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:50:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:50:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:50:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:50:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:50:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:50:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:50:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:50:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:50:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 12:50:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 12:50:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 12:50:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 12:50:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 12:50:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 12:50:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 12:50:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 12:50:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 12:50:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 12:50:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-12-18 12:50:38,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:50:38,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3604834] [2021-12-18 12:50:38,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3604834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:50:38,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:50:38,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 12:50:38,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786366273] [2021-12-18 12:50:38,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:50:38,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 12:50:38,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:50:38,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 12:50:38,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 12:50:38,505 INFO L87 Difference]: Start difference. First operand 4311 states and 6245 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:50:45,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:49,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:50:50,856 INFO L93 Difference]: Finished difference Result 4388 states and 6375 transitions. [2021-12-18 12:50:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 12:50:50,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 202 [2021-12-18 12:50:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:50:50,876 INFO L225 Difference]: With dead ends: 4388 [2021-12-18 12:50:50,876 INFO L226 Difference]: Without dead ends: 4386 [2021-12-18 12:50:50,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 12:50:50,884 INFO L933 BasicCegarLoop]: 5789 mSDtfsCounter, 5680 mSDsluCounter, 13341 mSDsCounter, 0 mSdLazyCounter, 3059 mSolverCounterSat, 1938 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 19130 SdHoareTripleChecker+Invalid, 4999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1938 IncrementalHoareTripleChecker+Valid, 3059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-18 12:50:50,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 19130 Invalid, 4999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1938 Valid, 3059 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-12-18 12:50:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2021-12-18 12:50:51,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4315. [2021-12-18 12:50:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3028 states have (on average 1.3196829590488772) internal successors, (3996), 3114 states have internal predecessors, (3996), 1128 states have call successors, (1128), 159 states have call predecessors, (1128), 157 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:50:51,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6248 transitions. [2021-12-18 12:50:51,187 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6248 transitions. Word has length 202 [2021-12-18 12:50:51,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:50:51,187 INFO L470 AbstractCegarLoop]: Abstraction has 4315 states and 6248 transitions. [2021-12-18 12:50:51,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 12:50:51,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6248 transitions. [2021-12-18 12:50:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-18 12:50:51,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:50:51,199 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:50:51,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 12:50:51,199 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:50:51,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:50:51,200 INFO L85 PathProgramCache]: Analyzing trace with hash 429175763, now seen corresponding path program 1 times [2021-12-18 12:50:51,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:50:51,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022797875] [2021-12-18 12:50:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:50:51,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:50:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:50:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:50:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:50:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:50:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:50:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:50:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:50:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:50:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:50:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:50:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:50:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:50:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 12:50:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 12:50:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 12:50:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:50:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:50:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 12:50:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:50:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-18 12:50:52,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:50:52,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022797875] [2021-12-18 12:50:52,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022797875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:50:52,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:50:52,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 12:50:52,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295988269] [2021-12-18 12:50:52,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:50:52,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 12:50:52,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:50:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 12:50:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:50:52,132 INFO L87 Difference]: Start difference. First operand 4315 states and 6248 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:50:55,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:57,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:50:59,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:01,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:21,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:39,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:41,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:43,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:45,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:51,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:54,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:57,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:51:59,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:51:59,443 INFO L93 Difference]: Finished difference Result 4847 states and 7138 transitions. [2021-12-18 12:51:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 12:51:59,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 207 [2021-12-18 12:51:59,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:51:59,457 INFO L225 Difference]: With dead ends: 4847 [2021-12-18 12:51:59,457 INFO L226 Difference]: Without dead ends: 4845 [2021-12-18 12:51:59,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-12-18 12:51:59,458 INFO L933 BasicCegarLoop]: 5332 mSDtfsCounter, 2920 mSDsluCounter, 15703 mSDsCounter, 0 mSdLazyCounter, 14465 mSolverCounterSat, 1619 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 21035 SdHoareTripleChecker+Invalid, 16095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1619 IncrementalHoareTripleChecker+Valid, 14465 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.2s IncrementalHoareTripleChecker+Time [2021-12-18 12:51:59,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3528 Valid, 21035 Invalid, 16095 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1619 Valid, 14465 Invalid, 11 Unknown, 0 Unchecked, 66.2s Time] [2021-12-18 12:51:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2021-12-18 12:51:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4315. [2021-12-18 12:51:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3028 states have (on average 1.3193527080581242) internal successors, (3995), 3114 states have internal predecessors, (3995), 1128 states have call successors, (1128), 159 states have call predecessors, (1128), 157 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:51:59,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6247 transitions. [2021-12-18 12:51:59,726 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6247 transitions. Word has length 207 [2021-12-18 12:51:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:51:59,727 INFO L470 AbstractCegarLoop]: Abstraction has 4315 states and 6247 transitions. [2021-12-18 12:51:59,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 12:51:59,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6247 transitions. [2021-12-18 12:51:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-18 12:51:59,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:51:59,740 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:51:59,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 12:51:59,740 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:51:59,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:51:59,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1029410861, now seen corresponding path program 1 times [2021-12-18 12:51:59,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:51:59,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816924379] [2021-12-18 12:51:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:51:59,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:52:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:52:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:52:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:52:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:52:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:52:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:52:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:52:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:52:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:52:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:52:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:52:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:52:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 12:52:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:52:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:52:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:52:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 12:52:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 12:52:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 12:52:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 12:52:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 12:52:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 12:52:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 12:52:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 12:52:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 12:52:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 12:52:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 12:52:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:52:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-18 12:52:00,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:52:00,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816924379] [2021-12-18 12:52:00,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816924379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:52:00,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:52:00,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 12:52:00,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748921870] [2021-12-18 12:52:00,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:52:00,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 12:52:00,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:52:00,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 12:52:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 12:52:00,577 INFO L87 Difference]: Start difference. First operand 4315 states and 6247 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 12:52:04,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:05,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:07,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:09,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:29,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:31,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:45,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:47,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:49,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:51,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:52:53,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:02,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:53:08,306 INFO L93 Difference]: Finished difference Result 5182 states and 7748 transitions. [2021-12-18 12:53:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 12:53:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 219 [2021-12-18 12:53:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:53:08,328 INFO L225 Difference]: With dead ends: 5182 [2021-12-18 12:53:08,328 INFO L226 Difference]: Without dead ends: 5180 [2021-12-18 12:53:08,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-12-18 12:53:08,331 INFO L933 BasicCegarLoop]: 5307 mSDtfsCounter, 4724 mSDsluCounter, 16686 mSDsCounter, 0 mSdLazyCounter, 14177 mSolverCounterSat, 5239 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5076 SdHoareTripleChecker+Valid, 21993 SdHoareTripleChecker+Invalid, 19427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5239 IncrementalHoareTripleChecker+Valid, 14177 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.6s IncrementalHoareTripleChecker+Time [2021-12-18 12:53:08,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5076 Valid, 21993 Invalid, 19427 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5239 Valid, 14177 Invalid, 11 Unknown, 0 Unchecked, 66.6s Time] [2021-12-18 12:53:08,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-12-18 12:53:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4315. [2021-12-18 12:53:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3028 states have (on average 1.3190224570673712) internal successors, (3994), 3114 states have internal predecessors, (3994), 1128 states have call successors, (1128), 159 states have call predecessors, (1128), 157 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:53:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6246 transitions. [2021-12-18 12:53:08,745 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6246 transitions. Word has length 219 [2021-12-18 12:53:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:53:08,746 INFO L470 AbstractCegarLoop]: Abstraction has 4315 states and 6246 transitions. [2021-12-18 12:53:08,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 12:53:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6246 transitions. [2021-12-18 12:53:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-18 12:53:08,760 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:53:08,761 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:53:08,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 12:53:08,761 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:53:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:53:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash 533720977, now seen corresponding path program 1 times [2021-12-18 12:53:08,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:53:08,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975256894] [2021-12-18 12:53:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:53:08,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 12:53:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 12:53:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 12:53:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 12:53:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 12:53:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 12:53:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 12:53:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 12:53:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:53:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:53:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 12:53:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 12:53:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:53:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:53:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 12:53:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 12:53:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 12:53:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 12:53:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 12:53:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 12:53:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 12:53:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 12:53:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 12:53:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:53:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 12:53:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 12:53:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 12:53:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 12:53:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 12:53:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-12-18 12:53:09,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 12:53:09,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975256894] [2021-12-18 12:53:09,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975256894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 12:53:09,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 12:53:09,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 12:53:09,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408186488] [2021-12-18 12:53:09,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 12:53:09,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 12:53:09,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 12:53:09,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 12:53:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 12:53:09,573 INFO L87 Difference]: Start difference. First operand 4315 states and 6246 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-18 12:53:12,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:14,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:16,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:19,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:38,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:48,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:50,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:52,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:54,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:53:59,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:54:04,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:54:06,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:54:08,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:54:10,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 12:54:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 12:54:13,492 INFO L93 Difference]: Finished difference Result 4386 states and 6371 transitions. [2021-12-18 12:54:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 12:54:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 222 [2021-12-18 12:54:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 12:54:13,508 INFO L225 Difference]: With dead ends: 4386 [2021-12-18 12:54:13,508 INFO L226 Difference]: Without dead ends: 4384 [2021-12-18 12:54:13,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-18 12:54:13,510 INFO L933 BasicCegarLoop]: 5251 mSDtfsCounter, 3534 mSDsluCounter, 9324 mSDsCounter, 0 mSdLazyCounter, 15191 mSolverCounterSat, 2807 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 14575 SdHoareTripleChecker+Invalid, 18012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2807 IncrementalHoareTripleChecker+Valid, 15191 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.0s IncrementalHoareTripleChecker+Time [2021-12-18 12:54:13,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4081 Valid, 14575 Invalid, 18012 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2807 Valid, 15191 Invalid, 14 Unknown, 0 Unchecked, 63.0s Time] [2021-12-18 12:54:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2021-12-18 12:54:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4315. [2021-12-18 12:54:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3028 states have (on average 1.3186922060766182) internal successors, (3993), 3114 states have internal predecessors, (3993), 1128 states have call successors, (1128), 159 states have call predecessors, (1128), 157 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-18 12:54:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6245 transitions. [2021-12-18 12:54:13,778 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6245 transitions. Word has length 222 [2021-12-18 12:54:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 12:54:13,779 INFO L470 AbstractCegarLoop]: Abstraction has 4315 states and 6245 transitions. [2021-12-18 12:54:13,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-18 12:54:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6245 transitions. [2021-12-18 12:54:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-18 12:54:13,793 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 12:54:13,793 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 12:54:13,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 12:54:13,793 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 12:54:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 12:54:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2114598794, now seen corresponding path program 1 times [2021-12-18 12:54:13,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 12:54:13,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152368730] [2021-12-18 12:54:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 12:54:13,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms