./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 10:46:02,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 10:46:02,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 10:46:02,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 10:46:02,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 10:46:03,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 10:46:03,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 10:46:03,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 10:46:03,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 10:46:03,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 10:46:03,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 10:46:03,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 10:46:03,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 10:46:03,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 10:46:03,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 10:46:03,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 10:46:03,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 10:46:03,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 10:46:03,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 10:46:03,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 10:46:03,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 10:46:03,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 10:46:03,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 10:46:03,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 10:46:03,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 10:46:03,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 10:46:03,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 10:46:03,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 10:46:03,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 10:46:03,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 10:46:03,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 10:46:03,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 10:46:03,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 10:46:03,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 10:46:03,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 10:46:03,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 10:46:03,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 10:46:03,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 10:46:03,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 10:46:03,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 10:46:03,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 10:46:03,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 10:46:03,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 10:46:03,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 10:46:03,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 10:46:03,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 10:46:03,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 10:46:03,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 10:46:03,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 10:46:03,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 10:46:03,076 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 10:46:03,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 10:46:03,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 10:46:03,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 10:46:03,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 10:46:03,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 10:46:03,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 10:46:03,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 10:46:03,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 10:46:03,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 10:46:03,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 10:46:03,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 10:46:03,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 10:46:03,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:46:03,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 10:46:03,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 10:46:03,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 10:46:03,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 10:46:03,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-12-18 10:46:03,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 10:46:03,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 10:46:03,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 10:46:03,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 10:46:03,372 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 10:46:03,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-12-18 10:46:03,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b0b2064/6cd50554e0ba4262b12f1e2ea145ca5b/FLAGebe325cb1 [2021-12-18 10:46:04,283 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 10:46:04,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-12-18 10:46:04,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b0b2064/6cd50554e0ba4262b12f1e2ea145ca5b/FLAGebe325cb1 [2021-12-18 10:46:04,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b0b2064/6cd50554e0ba4262b12f1e2ea145ca5b [2021-12-18 10:46:04,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 10:46:04,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 10:46:04,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 10:46:04,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 10:46:04,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 10:46:04,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:46:04" (1/1) ... [2021-12-18 10:46:04,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b0df97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:04, skipping insertion in model container [2021-12-18 10:46:04,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:46:04" (1/1) ... [2021-12-18 10:46:04,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 10:46:04,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 10:46:08,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-12-18 10:46:08,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-12-18 10:46:08,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-12-18 10:46:08,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-12-18 10:46:08,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:46:08,665 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 10:46:09,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-12-18 10:46:09,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-12-18 10:46:09,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-12-18 10:46:09,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-12-18 10:46:09,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:46:09,670 INFO L208 MainTranslator]: Completed translation [2021-12-18 10:46:09,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09 WrapperNode [2021-12-18 10:46:09,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 10:46:09,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 10:46:09,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 10:46:09,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 10:46:09,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:09,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,114 INFO L137 Inliner]: procedures = 484, calls = 3172, calls flagged for inlining = 226, calls inlined = 201, statements flattened = 6855 [2021-12-18 10:46:10,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 10:46:10,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 10:46:10,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 10:46:10,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 10:46:10,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 10:46:10,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 10:46:10,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 10:46:10,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 10:46:10,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (1/1) ... [2021-12-18 10:46:10,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:46:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 10:46:10,465 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 10:46:10,485 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 10:46:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_mutex [2021-12-18 10:46:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_mutex [2021-12-18 10:46:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_probe [2021-12-18 10:46:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_probe [2021-12-18 10:46:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 10:46:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 10:46:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 10:46:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 10:46:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 10:46:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 10:46:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 10:46:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 10:46:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-18 10:46:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-18 10:46:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-12-18 10:46:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-12-18 10:46:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2021-12-18 10:46:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2021-12-18 10:46:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2021-12-18 10:46:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2021-12-18 10:46:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 10:46:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 10:46:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_release_buffers [2021-12-18 10:46:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_release_buffers [2021-12-18 10:46:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-12-18 10:46:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-12-18 10:46:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 10:46:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 10:46:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 10:46:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 10:46:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure tuner_attach_stv6110 [2021-12-18 10:46:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure tuner_attach_stv6110 [2021-12-18 10:46:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 10:46:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 10:46:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 10:46:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-18 10:46:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-18 10:46:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 10:46:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 10:46:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 10:46:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 10:46:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 10:46:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 10:46:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 10:46:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_i2c_read [2021-12-18 10:46:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_i2c_read [2021-12-18 10:46:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 10:46:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 10:46:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 10:46:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 10:46:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 10:46:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 10:46:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 10:46:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 10:46:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_avail [2021-12-18 10:46:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_avail [2021-12-18 10:46:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure set_transfer [2021-12-18 10:46:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_transfer [2021-12-18 10:46:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_resume [2021-12-18 10:46:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_resume [2021-12-18 10:46:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2021-12-18 10:46:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2021-12-18 10:46:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 10:46:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 10:46:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_shutdown [2021-12-18 10:46:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_shutdown [2021-12-18 10:46:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 10:46:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure memset_io [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_io [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-18 10:46:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command [2021-12-18 10:46:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 10:46:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 10:46:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 10:46:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 10:46:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 10:46:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 10:46:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_write [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_write [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 10:46:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 10:46:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_remove [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_remove [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_stop [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_stop [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:46:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 10:46:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_i2c_init [2021-12-18 10:46:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_i2c_init [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-12-18 10:46:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 10:46:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-12-18 10:46:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_free [2021-12-18 10:46:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_free [2021-12-18 10:46:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 10:46:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure init_channels [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channels [2021-12-18 10:46:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure free_ringbuffer [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure free_ringbuffer [2021-12-18 10:46:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 10:46:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 10:46:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_register_frontend [2021-12-18 10:46:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_register_frontend [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure AllocateRingBuffers [2021-12-18 10:46:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure AllocateRingBuffers [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 10:46:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 10:46:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_init [2021-12-18 10:46:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_init [2021-12-18 10:46:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-12-18 10:46:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-12-18 10:46:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 10:46:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 10:46:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 10:46:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 10:46:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure demod_attach_stv0900 [2021-12-18 10:46:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure demod_attach_stv0900 [2021-12-18 10:46:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure FillTSBuffer [2021-12-18 10:46:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure FillTSBuffer [2021-12-18 10:46:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-12-18 10:46:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-12-18 10:46:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-12-18 10:46:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-12-18 10:46:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 10:46:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 10:46:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure create_ring_buffer [2021-12-18 10:46:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure create_ring_buffer [2021-12-18 10:46:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 10:46:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 10:46:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-18 10:46:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-18 10:46:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-18 10:46:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-18 10:46:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_gpio_set [2021-12-18 10:46:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_gpio_set [2021-12-18 10:46:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 10:46:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_read_eeprom [2021-12-18 10:46:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_read_eeprom [2021-12-18 10:46:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 10:46:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 10:46:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-18 10:46:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-18 10:46:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 10:46:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 10:46:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure my_dvb_dmxdev_ts_card_init [2021-12-18 10:46:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure my_dvb_dmxdev_ts_card_init [2021-12-18 10:46:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 10:46:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 10:46:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-18 10:46:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-18 10:46:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 10:46:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 10:46:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 10:46:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 10:46:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-12-18 10:46:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-12-18 10:46:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-12-18 10:46:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-12-18 10:46:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure init_channel [2021-12-18 10:46:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channel [2021-12-18 10:46:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure release_channel [2021-12-18 10:46:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure release_channel [2021-12-18 10:46:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-18 10:46:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-18 10:46:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_flush [2021-12-18 10:46:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_flush [2021-12-18 10:46:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 10:46:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-18 10:46:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-18 10:46:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 10:46:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 10:46:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 10:46:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 10:46:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 10:46:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 10:46:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_67 [2021-12-18 10:46:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_67 [2021-12-18 10:46:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-12-18 10:46:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-12-18 10:46:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 10:46:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 10:46:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-12-18 10:46:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-12-18 10:46:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 10:46:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 10:46:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 10:46:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 10:46:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 10:46:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 10:46:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-18 10:46:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-18 10:46:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 10:46:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 10:46:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 10:46:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_unregister_frontend [2021-12-18 10:46:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_unregister_frontend [2021-12-18 10:46:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 10:46:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 10:46:11,805 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 10:46:11,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 10:46:13,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 10:46:18,969 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 10:46:19,030 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 10:46:19,049 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 10:46:19,049 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 10:46:19,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:46:19 BoogieIcfgContainer [2021-12-18 10:46:19,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 10:46:19,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 10:46:19,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 10:46:19,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 10:46:19,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:46:04" (1/3) ... [2021-12-18 10:46:19,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f68dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:46:19, skipping insertion in model container [2021-12-18 10:46:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:46:09" (2/3) ... [2021-12-18 10:46:19,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f68dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:46:19, skipping insertion in model container [2021-12-18 10:46:19,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:46:19" (3/3) ... [2021-12-18 10:46:19,070 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-12-18 10:46:19,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 10:46:19,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 10:46:19,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 10:46:19,137 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 10:46:19,137 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 10:46:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2021-12-18 10:46:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-18 10:46:19,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:46:19,206 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:19,207 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 10:46:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:46:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1797506547, now seen corresponding path program 1 times [2021-12-18 10:46:19,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:46:19,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479515902] [2021-12-18 10:46:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:46:19,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:46:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:46:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:46:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:46:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:46:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:46:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:46:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:46:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:46:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:46:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:46:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:46:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:46:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:46:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 10:46:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-18 10:46:20,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:46:20,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479515902] [2021-12-18 10:46:20,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479515902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:46:20,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:46:20,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:46:20,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706017828] [2021-12-18 10:46:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:46:20,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:46:20,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:46:20,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:46:20,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:46:20,399 INFO L87 Difference]: Start difference. First operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 10:46:25,035 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 10:46:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:46:28,554 INFO L93 Difference]: Finished difference Result 6435 states and 9485 transitions. [2021-12-18 10:46:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:46:28,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 162 [2021-12-18 10:46:28,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:46:28,628 INFO L225 Difference]: With dead ends: 6435 [2021-12-18 10:46:28,629 INFO L226 Difference]: Without dead ends: 4395 [2021-12-18 10:46:28,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:46:28,658 INFO L933 BasicCegarLoop]: 3117 mSDtfsCounter, 4006 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 1596 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1596 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:46:28,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4390 Valid, 6863 Invalid, 3316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1596 Valid, 1719 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-18 10:46:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2021-12-18 10:46:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 4337. [2021-12-18 10:46:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 3111 states have (on average 1.3185470909675345) internal successors, (4102), 3166 states have internal predecessors, (4102), 994 states have call successors, (994), 209 states have call predecessors, (994), 229 states have return successors, (1190), 1014 states have call predecessors, (1190), 990 states have call successors, (1190) [2021-12-18 10:46:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 6286 transitions. [2021-12-18 10:46:29,083 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 6286 transitions. Word has length 162 [2021-12-18 10:46:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:46:29,087 INFO L470 AbstractCegarLoop]: Abstraction has 4337 states and 6286 transitions. [2021-12-18 10:46:29,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 10:46:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 6286 transitions. [2021-12-18 10:46:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 10:46:29,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:46:29,100 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:29,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 10:46:29,100 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 10:46:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:46:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1705178238, now seen corresponding path program 1 times [2021-12-18 10:46:29,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:46:29,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488635868] [2021-12-18 10:46:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:46:29,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:46:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:46:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:46:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:46:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:46:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:46:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:46:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:46:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:46:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:46:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:46:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:46:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:46:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:46:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 10:46:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-18 10:46:29,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:46:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488635868] [2021-12-18 10:46:29,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488635868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:46:29,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:46:29,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:46:29,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826861495] [2021-12-18 10:46:29,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:46:29,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:46:29,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:46:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:46:29,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:46:29,888 INFO L87 Difference]: Start difference. First operand 4337 states and 6286 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 10:46:36,312 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 10:46:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:46:37,716 INFO L93 Difference]: Finished difference Result 12845 states and 18633 transitions. [2021-12-18 10:46:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:46:37,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 164 [2021-12-18 10:46:37,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:46:37,792 INFO L225 Difference]: With dead ends: 12845 [2021-12-18 10:46:37,792 INFO L226 Difference]: Without dead ends: 8537 [2021-12-18 10:46:37,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:46:37,826 INFO L933 BasicCegarLoop]: 3055 mSDtfsCounter, 3967 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 1483 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4361 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1483 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:46:37,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4361 Valid, 6683 Invalid, 3207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1483 Valid, 1723 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-12-18 10:46:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2021-12-18 10:46:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 8476. [2021-12-18 10:46:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 6102 states have (on average 1.3200589970501475) internal successors, (8055), 6204 states have internal predecessors, (8055), 1917 states have call successors, (1917), 413 states have call predecessors, (1917), 454 states have return successors, (2301), 1964 states have call predecessors, (2301), 1913 states have call successors, (2301) [2021-12-18 10:46:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 12273 transitions. [2021-12-18 10:46:38,370 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 12273 transitions. Word has length 164 [2021-12-18 10:46:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:46:38,371 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 12273 transitions. [2021-12-18 10:46:38,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 10:46:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 12273 transitions. [2021-12-18 10:46:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-18 10:46:38,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:46:38,376 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:38,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 10:46:38,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:46:38,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:46:38,378 INFO L85 PathProgramCache]: Analyzing trace with hash -315599694, now seen corresponding path program 1 times [2021-12-18 10:46:38,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:46:38,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066814026] [2021-12-18 10:46:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:46:38,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:46:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:46:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:46:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:46:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:46:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:46:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:46:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:46:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:46:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:46:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:46:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:46:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:46:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-18 10:46:38,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:46:38,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066814026] [2021-12-18 10:46:38,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066814026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:46:38,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:46:38,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:46:38,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526806729] [2021-12-18 10:46:38,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:46:38,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:46:38,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:46:38,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:46:38,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:46:38,930 INFO L87 Difference]: Start difference. First operand 8476 states and 12273 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 10:46:44,278 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 10:46:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:46:44,989 INFO L93 Difference]: Finished difference Result 14885 states and 21449 transitions. [2021-12-18 10:46:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:46:44,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 180 [2021-12-18 10:46:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:46:45,031 INFO L225 Difference]: With dead ends: 14885 [2021-12-18 10:46:45,032 INFO L226 Difference]: Without dead ends: 6438 [2021-12-18 10:46:45,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:46:45,081 INFO L933 BasicCegarLoop]: 2956 mSDtfsCounter, 1748 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 820 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:46:45,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 6594 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1439 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-12-18 10:46:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6438 states. [2021-12-18 10:46:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6438 to 6381. [2021-12-18 10:46:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6381 states, 4569 states have (on average 1.3142919676077915) internal successors, (6005), 4638 states have internal predecessors, (6005), 1445 states have call successors, (1445), 346 states have call predecessors, (1445), 364 states have return successors, (1641), 1455 states have call predecessors, (1641), 1441 states have call successors, (1641) [2021-12-18 10:46:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6381 states to 6381 states and 9091 transitions. [2021-12-18 10:46:45,366 INFO L78 Accepts]: Start accepts. Automaton has 6381 states and 9091 transitions. Word has length 180 [2021-12-18 10:46:45,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:46:45,368 INFO L470 AbstractCegarLoop]: Abstraction has 6381 states and 9091 transitions. [2021-12-18 10:46:45,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 10:46:45,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6381 states and 9091 transitions. [2021-12-18 10:46:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-18 10:46:45,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:46:45,373 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 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] [2021-12-18 10:46:45,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 10:46:45,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 10:46:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:46:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1633683588, now seen corresponding path program 1 times [2021-12-18 10:46:45,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:46:45,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606173933] [2021-12-18 10:46:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:46:45,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:46:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:46:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:46:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:46:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:46:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:46:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:46:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:46:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:46:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:46:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:46:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:46:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:46:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:46:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:46:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:46:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 10:46:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:46:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 10:46:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:46:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-12-18 10:46:46,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:46:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606173933] [2021-12-18 10:46:46,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606173933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:46:46,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:46:46,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:46:46,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250550742] [2021-12-18 10:46:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:46:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:46:46,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:46:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:46:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:46:46,018 INFO L87 Difference]: Start difference. First operand 6381 states and 9091 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 10:46:55,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:46:57,249 WARN L534 Checker$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 10:46:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:46:59,346 INFO L93 Difference]: Finished difference Result 18317 states and 26454 transitions. [2021-12-18 10:46:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:46:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 200 [2021-12-18 10:46:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:46:59,417 INFO L225 Difference]: With dead ends: 18317 [2021-12-18 10:46:59,418 INFO L226 Difference]: Without dead ends: 11965 [2021-12-18 10:46:59,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:46:59,449 INFO L933 BasicCegarLoop]: 2977 mSDtfsCounter, 5411 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 3340 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5813 SdHoareTripleChecker+Valid, 7606 SdHoareTripleChecker+Invalid, 6614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3340 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:46:59,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5813 Valid, 7606 Invalid, 6614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3340 Valid, 3272 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2021-12-18 10:46:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2021-12-18 10:46:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 11301. [2021-12-18 10:46:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11301 states, 8115 states have (on average 1.3147258163894024) internal successors, (10669), 8257 states have internal predecessors, (10669), 2537 states have call successors, (2537), 601 states have call predecessors, (2537), 646 states have return successors, (2965), 2554 states have call predecessors, (2965), 2533 states have call successors, (2965) [2021-12-18 10:46:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11301 states to 11301 states and 16171 transitions. [2021-12-18 10:46:59,907 INFO L78 Accepts]: Start accepts. Automaton has 11301 states and 16171 transitions. Word has length 200 [2021-12-18 10:46:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:46:59,908 INFO L470 AbstractCegarLoop]: Abstraction has 11301 states and 16171 transitions. [2021-12-18 10:46:59,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 10:46:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 11301 states and 16171 transitions. [2021-12-18 10:46:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-18 10:46:59,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:46:59,913 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 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] [2021-12-18 10:46:59,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 10:46:59,914 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 10:46:59,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:46:59,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1195649508, now seen corresponding path program 1 times [2021-12-18 10:46:59,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:46:59,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655474648] [2021-12-18 10:46:59,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:46:59,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:46:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:47:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:47:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:47:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:47:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:47:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:47:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:47:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:47:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:47:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:47:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:47:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:47:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:47:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:47:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:47:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:47:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:47:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:47:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:47:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:47:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-12-18 10:47:00,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:47:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655474648] [2021-12-18 10:47:00,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655474648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:47:00,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:47:00,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:47:00,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039896249] [2021-12-18 10:47:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:47:00,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:47:00,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:47:00,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:47:00,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:47:00,752 INFO L87 Difference]: Start difference. First operand 11301 states and 16171 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:47:05,868 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 10:47:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:47:06,526 INFO L93 Difference]: Finished difference Result 11363 states and 16278 transitions. [2021-12-18 10:47:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:47:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 224 [2021-12-18 10:47:06,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:47:06,576 INFO L225 Difference]: With dead ends: 11363 [2021-12-18 10:47:06,576 INFO L226 Difference]: Without dead ends: 11361 [2021-12-18 10:47:06,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:47:06,587 INFO L933 BasicCegarLoop]: 2687 mSDtfsCounter, 3313 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1006 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 8587 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:47:06,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3608 Valid, 8587 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 1782 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-12-18 10:47:06,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2021-12-18 10:47:07,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 11305. [2021-12-18 10:47:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11305 states, 8118 states have (on average 1.314609509731461) internal successors, (10672), 8260 states have internal predecessors, (10672), 2537 states have call successors, (2537), 602 states have call predecessors, (2537), 647 states have return successors, (2965), 2554 states have call predecessors, (2965), 2533 states have call successors, (2965) [2021-12-18 10:47:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 16174 transitions. [2021-12-18 10:47:07,098 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 16174 transitions. Word has length 224 [2021-12-18 10:47:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:47:07,098 INFO L470 AbstractCegarLoop]: Abstraction has 11305 states and 16174 transitions. [2021-12-18 10:47:07,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:47:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 16174 transitions. [2021-12-18 10:47:07,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-18 10:47:07,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:47:07,105 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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] [2021-12-18 10:47:07,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 10:47:07,106 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 10:47:07,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:47:07,106 INFO L85 PathProgramCache]: Analyzing trace with hash 320909433, now seen corresponding path program 1 times [2021-12-18 10:47:07,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:47:07,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968233937] [2021-12-18 10:47:07,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:47:07,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:47:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:47:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:47:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:47:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:47:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:47:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:47:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:47:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:47:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:47:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:47:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:47:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:47:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:47:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:47:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:47:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:47:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:47:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:47:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:47:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:47:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:47:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-12-18 10:47:07,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:47:07,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968233937] [2021-12-18 10:47:07,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968233937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:47:07,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:47:07,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:47:07,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531019856] [2021-12-18 10:47:07,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:47:07,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:47:07,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:47:07,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:47:07,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:47:07,855 INFO L87 Difference]: Start difference. First operand 11305 states and 16174 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:47:12,436 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 10:47:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:47:12,989 INFO L93 Difference]: Finished difference Result 11367 states and 16281 transitions. [2021-12-18 10:47:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:47:12,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 229 [2021-12-18 10:47:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:47:13,034 INFO L225 Difference]: With dead ends: 11367 [2021-12-18 10:47:13,034 INFO L226 Difference]: Without dead ends: 11365 [2021-12-18 10:47:13,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:47:13,044 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 3307 mSDsluCounter, 5929 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1005 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:47:13,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3591 Valid, 8628 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 1782 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-12-18 10:47:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2021-12-18 10:47:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 11309. [2021-12-18 10:47:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11309 states, 8121 states have (on average 1.3144932890038172) internal successors, (10675), 8263 states have internal predecessors, (10675), 2537 states have call successors, (2537), 603 states have call predecessors, (2537), 648 states have return successors, (2965), 2554 states have call predecessors, (2965), 2533 states have call successors, (2965) [2021-12-18 10:47:13,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11309 states to 11309 states and 16177 transitions. [2021-12-18 10:47:13,459 INFO L78 Accepts]: Start accepts. Automaton has 11309 states and 16177 transitions. Word has length 229 [2021-12-18 10:47:13,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:47:13,460 INFO L470 AbstractCegarLoop]: Abstraction has 11309 states and 16177 transitions. [2021-12-18 10:47:13,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:47:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11309 states and 16177 transitions. [2021-12-18 10:47:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-18 10:47:13,467 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:47:13,467 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:47:13,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 10:47:13,468 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 10:47:13,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:47:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash 120136023, now seen corresponding path program 1 times [2021-12-18 10:47:13,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:47:13,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052117643] [2021-12-18 10:47:13,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:47:13,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:47:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:47:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:47:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:47:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:47:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:47:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:47:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:47:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:47:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:47:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:47:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:47:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:47:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:47:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:47:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:47:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:47:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:47:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:47:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:47:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 10:47:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 10:47:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:47:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 10:47:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:47:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-18 10:47:14,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:47:14,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052117643] [2021-12-18 10:47:14,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052117643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:47:14,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:47:14,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:47:14,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879945217] [2021-12-18 10:47:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:47:14,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:47:14,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:47:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:47:14,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:47:14,277 INFO L87 Difference]: Start difference. First operand 11309 states and 16177 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 10:47:24,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:47:26,658 WARN L534 Checker$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 10:47:28,733 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 10:47:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:47:31,303 INFO L93 Difference]: Finished difference Result 32657 states and 46844 transitions. [2021-12-18 10:47:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:47:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 241 [2021-12-18 10:47:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:47:31,401 INFO L225 Difference]: With dead ends: 32657 [2021-12-18 10:47:31,401 INFO L226 Difference]: Without dead ends: 21746 [2021-12-18 10:47:31,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:47:31,456 INFO L933 BasicCegarLoop]: 3354 mSDtfsCounter, 6213 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 4590 mSolverCounterSat, 3486 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6581 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 8079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3486 IncrementalHoareTripleChecker+Valid, 4590 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:47:31,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6581 Valid, 6355 Invalid, 8079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3486 Valid, 4590 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2021-12-18 10:47:31,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21746 states. [2021-12-18 10:47:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21746 to 21601. [2021-12-18 10:47:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21601 states, 15557 states have (on average 1.3153564311885324) internal successors, (20463), 15801 states have internal predecessors, (20463), 4797 states have call successors, (4797), 1149 states have call predecessors, (4797), 1244 states have return successors, (5645), 4872 states have call predecessors, (5645), 4793 states have call successors, (5645) [2021-12-18 10:47:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21601 states to 21601 states and 30905 transitions. [2021-12-18 10:47:32,462 INFO L78 Accepts]: Start accepts. Automaton has 21601 states and 30905 transitions. Word has length 241 [2021-12-18 10:47:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:47:32,462 INFO L470 AbstractCegarLoop]: Abstraction has 21601 states and 30905 transitions. [2021-12-18 10:47:32,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 10:47:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 21601 states and 30905 transitions. [2021-12-18 10:47:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-18 10:47:32,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:47:32,471 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:47:32,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 10:47:32,471 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 10:47:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:47:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1808136679, now seen corresponding path program 1 times [2021-12-18 10:47:32,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:47:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852280444] [2021-12-18 10:47:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:47:32,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:47:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:47:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:47:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:47:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:47:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:47:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:47:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:47:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:47:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:47:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:47:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:47:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:47:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:47:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:47:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:47:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:47:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:47:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:47:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:47:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 10:47:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 10:47:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:47:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 10:47:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:47:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-18 10:47:32,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:47:32,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852280444] [2021-12-18 10:47:32,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852280444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:47:32,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:47:32,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:47:32,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738045812] [2021-12-18 10:47:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:47:32,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:47:32,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:47:32,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:47:32,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:47:32,967 INFO L87 Difference]: Start difference. First operand 21601 states and 30905 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 10:47:42,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:47:44,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:47:47,021 WARN L534 Checker$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 10:47:49,112 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 10:47:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:47:52,277 INFO L93 Difference]: Finished difference Result 53261 states and 76348 transitions. [2021-12-18 10:47:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:47:52,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 241 [2021-12-18 10:47:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:47:52,422 INFO L225 Difference]: With dead ends: 53261 [2021-12-18 10:47:52,423 INFO L226 Difference]: Without dead ends: 32058 [2021-12-18 10:47:52,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:47:52,522 INFO L933 BasicCegarLoop]: 4795 mSDtfsCounter, 4392 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 5278 mSolverCounterSat, 2756 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 8000 SdHoareTripleChecker+Invalid, 8037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2756 IncrementalHoareTripleChecker+Valid, 5278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:47:52,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4761 Valid, 8000 Invalid, 8037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2756 Valid, 5278 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2021-12-18 10:47:52,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32058 states. [2021-12-18 10:47:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32058 to 31885. [2021-12-18 10:47:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31885 states, 22985 states have (on average 1.3157711551011528) internal successors, (30243), 23331 states have internal predecessors, (30243), 7057 states have call successors, (7057), 1695 states have call predecessors, (7057), 1840 states have return successors, (8325), 7190 states have call predecessors, (8325), 7053 states have call successors, (8325) [2021-12-18 10:47:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31885 states to 31885 states and 45625 transitions. [2021-12-18 10:47:54,055 INFO L78 Accepts]: Start accepts. Automaton has 31885 states and 45625 transitions. Word has length 241 [2021-12-18 10:47:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:47:54,056 INFO L470 AbstractCegarLoop]: Abstraction has 31885 states and 45625 transitions. [2021-12-18 10:47:54,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 10:47:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31885 states and 45625 transitions. [2021-12-18 10:47:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-18 10:47:54,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:47:54,065 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 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] [2021-12-18 10:47:54,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 10:47:54,065 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 10:47:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:47:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -125364540, now seen corresponding path program 1 times [2021-12-18 10:47:54,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:47:54,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986219411] [2021-12-18 10:47:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:47:54,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:47:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:47:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:47:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:47:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:47:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:47:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:47:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:47:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:54,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:47:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:47:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:47:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:47:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:47:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:47:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:47:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:47:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:47:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:47:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:47:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:47:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:47:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:47:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:47:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:47:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:47:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-12-18 10:47:55,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:47:55,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986219411] [2021-12-18 10:47:55,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986219411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:47:55,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:47:55,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:47:55,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901508386] [2021-12-18 10:47:55,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:47:55,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:47:55,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:47:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:47:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:47:55,265 INFO L87 Difference]: Start difference. First operand 31885 states and 45625 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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 10:48:00,318 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 10:48:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:01,198 INFO L93 Difference]: Finished difference Result 32059 states and 45936 transitions. [2021-12-18 10:48:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:48:01,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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 234 [2021-12-18 10:48:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:01,303 INFO L225 Difference]: With dead ends: 32059 [2021-12-18 10:48:01,303 INFO L226 Difference]: Without dead ends: 32057 [2021-12-18 10:48:01,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:01,319 INFO L933 BasicCegarLoop]: 2710 mSDtfsCounter, 3301 mSDsluCounter, 5952 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 995 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 8662 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:01,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 8662 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-12-18 10:48:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32057 states. [2021-12-18 10:48:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32057 to 31889. [2021-12-18 10:48:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31889 states, 22988 states have (on average 1.3157299460588132) internal successors, (30246), 23334 states have internal predecessors, (30246), 7057 states have call successors, (7057), 1696 states have call predecessors, (7057), 1841 states have return successors, (8325), 7190 states have call predecessors, (8325), 7053 states have call successors, (8325) [2021-12-18 10:48:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31889 states to 31889 states and 45628 transitions. [2021-12-18 10:48:02,642 INFO L78 Accepts]: Start accepts. Automaton has 31889 states and 45628 transitions. Word has length 234 [2021-12-18 10:48:02,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:02,642 INFO L470 AbstractCegarLoop]: Abstraction has 31889 states and 45628 transitions. [2021-12-18 10:48:02,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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 10:48:02,643 INFO L276 IsEmpty]: Start isEmpty. Operand 31889 states and 45628 transitions. [2021-12-18 10:48:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-18 10:48:02,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:02,652 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:48:02,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 10:48:02,653 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 10:48:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:02,653 INFO L85 PathProgramCache]: Analyzing trace with hash 289996569, now seen corresponding path program 1 times [2021-12-18 10:48:02,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:02,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117496070] [2021-12-18 10:48:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:02,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2021-12-18 10:48:03,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:03,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117496070] [2021-12-18 10:48:03,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117496070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:03,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:03,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:03,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686407480] [2021-12-18 10:48:03,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:03,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:03,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:03,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:03,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:03,511 INFO L87 Difference]: Start difference. First operand 31889 states and 45628 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:48:08,779 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 10:48:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:09,690 INFO L93 Difference]: Finished difference Result 32353 states and 46171 transitions. [2021-12-18 10:48:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:48:09,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 239 [2021-12-18 10:48:09,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:09,813 INFO L225 Difference]: With dead ends: 32353 [2021-12-18 10:48:09,814 INFO L226 Difference]: Without dead ends: 32351 [2021-12-18 10:48:09,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:09,839 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 3291 mSDsluCounter, 5940 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 1014 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 8639 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:09,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 8639 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 1802 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-12-18 10:48:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32351 states. [2021-12-18 10:48:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32351 to 32181. [2021-12-18 10:48:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32181 states, 23204 states have (on average 1.3135666264437167) internal successors, (30480), 23550 states have internal predecessors, (30480), 7057 states have call successors, (7057), 1772 states have call predecessors, (7057), 1917 states have return successors, (8325), 7190 states have call predecessors, (8325), 7053 states have call successors, (8325) [2021-12-18 10:48:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32181 states to 32181 states and 45862 transitions. [2021-12-18 10:48:11,232 INFO L78 Accepts]: Start accepts. Automaton has 32181 states and 45862 transitions. Word has length 239 [2021-12-18 10:48:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:11,233 INFO L470 AbstractCegarLoop]: Abstraction has 32181 states and 45862 transitions. [2021-12-18 10:48:11,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:48:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 32181 states and 45862 transitions. [2021-12-18 10:48:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 10:48:11,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:11,243 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 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] [2021-12-18 10:48:11,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 10:48:11,244 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 10:48:11,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1096737884, now seen corresponding path program 1 times [2021-12-18 10:48:11,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:11,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503481393] [2021-12-18 10:48:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:11,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:48:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2021-12-18 10:48:12,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:12,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503481393] [2021-12-18 10:48:12,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503481393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:12,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:12,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:12,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337712634] [2021-12-18 10:48:12,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:12,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:12,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:12,171 INFO L87 Difference]: Start difference. First operand 32181 states and 45862 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:48:17,464 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 10:48:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:18,429 INFO L93 Difference]: Finished difference Result 32355 states and 46173 transitions. [2021-12-18 10:48:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:48:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 244 [2021-12-18 10:48:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:18,529 INFO L225 Difference]: With dead ends: 32355 [2021-12-18 10:48:18,529 INFO L226 Difference]: Without dead ends: 32353 [2021-12-18 10:48:18,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:18,548 INFO L933 BasicCegarLoop]: 2708 mSDtfsCounter, 3299 mSDsluCounter, 5947 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 999 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 8655 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:18,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 8655 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-12-18 10:48:18,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32353 states. [2021-12-18 10:48:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32353 to 32185. [2021-12-18 10:48:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32185 states, 23207 states have (on average 1.3135260912655664) internal successors, (30483), 23553 states have internal predecessors, (30483), 7057 states have call successors, (7057), 1773 states have call predecessors, (7057), 1918 states have return successors, (8325), 7190 states have call predecessors, (8325), 7053 states have call successors, (8325) [2021-12-18 10:48:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32185 states to 32185 states and 45865 transitions. [2021-12-18 10:48:19,851 INFO L78 Accepts]: Start accepts. Automaton has 32185 states and 45865 transitions. Word has length 244 [2021-12-18 10:48:19,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:19,852 INFO L470 AbstractCegarLoop]: Abstraction has 32185 states and 45865 transitions. [2021-12-18 10:48:19,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:48:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 32185 states and 45865 transitions. [2021-12-18 10:48:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 10:48:19,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:19,863 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 6, 5, 5, 4, 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] [2021-12-18 10:48:19,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 10:48:19,863 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 10:48:19,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1565078969, now seen corresponding path program 1 times [2021-12-18 10:48:19,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:19,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893862971] [2021-12-18 10:48:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:19,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:48:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:48:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2021-12-18 10:48:20,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:20,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893862971] [2021-12-18 10:48:20,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893862971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:20,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:20,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997340034] [2021-12-18 10:48:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:20,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:20,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:20,879 INFO L87 Difference]: Start difference. First operand 32185 states and 45865 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 10:48:26,430 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 10:48:27,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:27,439 INFO L93 Difference]: Finished difference Result 32359 states and 46176 transitions. [2021-12-18 10:48:27,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:48:27,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 249 [2021-12-18 10:48:27,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:27,541 INFO L225 Difference]: With dead ends: 32359 [2021-12-18 10:48:27,541 INFO L226 Difference]: Without dead ends: 32357 [2021-12-18 10:48:27,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:27,557 INFO L933 BasicCegarLoop]: 2696 mSDtfsCounter, 3303 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 996 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 8610 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:27,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 8610 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-12-18 10:48:27,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32357 states. [2021-12-18 10:48:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32357 to 32189. [2021-12-18 10:48:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32189 states, 23210 states have (on average 1.3134855665661354) internal successors, (30486), 23556 states have internal predecessors, (30486), 7057 states have call successors, (7057), 1774 states have call predecessors, (7057), 1919 states have return successors, (8325), 7190 states have call predecessors, (8325), 7053 states have call successors, (8325) [2021-12-18 10:48:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32189 states to 32189 states and 45868 transitions. [2021-12-18 10:48:28,825 INFO L78 Accepts]: Start accepts. Automaton has 32189 states and 45868 transitions. Word has length 249 [2021-12-18 10:48:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:28,826 INFO L470 AbstractCegarLoop]: Abstraction has 32189 states and 45868 transitions. [2021-12-18 10:48:28,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 10:48:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 32189 states and 45868 transitions. [2021-12-18 10:48:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-18 10:48:28,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:28,836 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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] [2021-12-18 10:48:28,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 10:48:28,837 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 10:48:28,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1378035181, now seen corresponding path program 1 times [2021-12-18 10:48:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:28,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736484330] [2021-12-18 10:48:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:28,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 10:48:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 10:48:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 10:48:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 10:48:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-12-18 10:48:29,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:29,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736484330] [2021-12-18 10:48:29,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736484330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:29,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:29,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:48:29,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680399830] [2021-12-18 10:48:29,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:29,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:48:29,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:48:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:48:29,466 INFO L87 Difference]: Start difference. First operand 32189 states and 45868 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:48:35,707 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 10:48:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:36,976 INFO L93 Difference]: Finished difference Result 71033 states and 101023 transitions. [2021-12-18 10:48:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:48:36,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 248 [2021-12-18 10:48:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:37,109 INFO L225 Difference]: With dead ends: 71033 [2021-12-18 10:48:37,109 INFO L226 Difference]: Without dead ends: 39242 [2021-12-18 10:48:37,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:48:37,205 INFO L933 BasicCegarLoop]: 3422 mSDtfsCounter, 1662 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 747 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 7342 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:37,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1901 Valid, 7342 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 1481 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-12-18 10:48:37,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39242 states. [2021-12-18 10:48:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39242 to 39017. [2021-12-18 10:48:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39017 states, 28129 states have (on average 1.312275587472004) internal successors, (36913), 28519 states have internal predecessors, (36913), 8495 states have call successors, (8495), 2249 states have call predecessors, (8495), 2390 states have return successors, (9763), 8604 states have call predecessors, (9763), 8491 states have call successors, (9763) [2021-12-18 10:48:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39017 states to 39017 states and 55171 transitions. [2021-12-18 10:48:38,853 INFO L78 Accepts]: Start accepts. Automaton has 39017 states and 55171 transitions. Word has length 248 [2021-12-18 10:48:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:38,854 INFO L470 AbstractCegarLoop]: Abstraction has 39017 states and 55171 transitions. [2021-12-18 10:48:38,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:48:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand 39017 states and 55171 transitions. [2021-12-18 10:48:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-18 10:48:39,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:39,020 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 7, 6, 6, 4, 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] [2021-12-18 10:48:39,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 10:48:39,020 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 10:48:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:39,021 INFO L85 PathProgramCache]: Analyzing trace with hash 697579652, now seen corresponding path program 1 times [2021-12-18 10:48:39,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:39,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067941602] [2021-12-18 10:48:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:39,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:48:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:48:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:48:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2021-12-18 10:48:39,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:39,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067941602] [2021-12-18 10:48:39,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067941602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:39,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:39,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:39,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829529004] [2021-12-18 10:48:39,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:39,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:39,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:39,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:39,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:39,804 INFO L87 Difference]: Start difference. First operand 39017 states and 55171 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 10:48:45,036 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 10:48:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:46,110 INFO L93 Difference]: Finished difference Result 39191 states and 55482 transitions. [2021-12-18 10:48:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:48:46,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 254 [2021-12-18 10:48:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:46,235 INFO L225 Difference]: With dead ends: 39191 [2021-12-18 10:48:46,235 INFO L226 Difference]: Without dead ends: 39189 [2021-12-18 10:48:46,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:46,259 INFO L933 BasicCegarLoop]: 2711 mSDtfsCounter, 3301 mSDsluCounter, 5956 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 993 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 8667 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:46,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3582 Valid, 8667 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-12-18 10:48:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39189 states. [2021-12-18 10:48:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39189 to 39021. [2021-12-18 10:48:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39021 states, 28132 states have (on average 1.3122422863642826) internal successors, (36916), 28522 states have internal predecessors, (36916), 8495 states have call successors, (8495), 2250 states have call predecessors, (8495), 2391 states have return successors, (9763), 8604 states have call predecessors, (9763), 8491 states have call successors, (9763) [2021-12-18 10:48:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39021 states to 39021 states and 55174 transitions. [2021-12-18 10:48:47,814 INFO L78 Accepts]: Start accepts. Automaton has 39021 states and 55174 transitions. Word has length 254 [2021-12-18 10:48:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:47,814 INFO L470 AbstractCegarLoop]: Abstraction has 39021 states and 55174 transitions. [2021-12-18 10:48:47,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 10:48:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 39021 states and 55174 transitions. [2021-12-18 10:48:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-18 10:48:47,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:47,820 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 8, 7, 7, 4, 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] [2021-12-18 10:48:47,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 10:48:47,820 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 10:48:47,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash 408900697, now seen corresponding path program 1 times [2021-12-18 10:48:47,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:47,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425520556] [2021-12-18 10:48:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:47,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:48:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:48:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:48:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:48:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2021-12-18 10:48:48,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:48,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425520556] [2021-12-18 10:48:48,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425520556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:48,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:48,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:48,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685498535] [2021-12-18 10:48:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:48,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:48,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:48,483 INFO L87 Difference]: Start difference. First operand 39021 states and 55174 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 10:48:53,942 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 10:48:55,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:48:55,174 INFO L93 Difference]: Finished difference Result 39195 states and 55485 transitions. [2021-12-18 10:48:55,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:48:55,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 259 [2021-12-18 10:48:55,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:48:55,288 INFO L225 Difference]: With dead ends: 39195 [2021-12-18 10:48:55,288 INFO L226 Difference]: Without dead ends: 39193 [2021-12-18 10:48:55,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:48:55,312 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 3302 mSDsluCounter, 5921 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 992 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 8620 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:48:55,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3594 Valid, 8620 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-12-18 10:48:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39193 states. [2021-12-18 10:48:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39193 to 39025. [2021-12-18 10:48:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39025 states, 28135 states have (on average 1.3122089923582727) internal successors, (36919), 28525 states have internal predecessors, (36919), 8495 states have call successors, (8495), 2251 states have call predecessors, (8495), 2392 states have return successors, (9763), 8604 states have call predecessors, (9763), 8491 states have call successors, (9763) [2021-12-18 10:48:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39025 states to 39025 states and 55177 transitions. [2021-12-18 10:48:56,751 INFO L78 Accepts]: Start accepts. Automaton has 39025 states and 55177 transitions. Word has length 259 [2021-12-18 10:48:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:48:56,751 INFO L470 AbstractCegarLoop]: Abstraction has 39025 states and 55177 transitions. [2021-12-18 10:48:56,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 10:48:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 39025 states and 55177 transitions. [2021-12-18 10:48:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 10:48:56,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:48:56,758 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 9, 8, 8, 4, 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] [2021-12-18 10:48:56,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 10:48:56,758 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 10:48:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:48:56,759 INFO L85 PathProgramCache]: Analyzing trace with hash 786591076, now seen corresponding path program 1 times [2021-12-18 10:48:56,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:48:56,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237036576] [2021-12-18 10:48:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:48:56,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:48:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:48:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:56,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:48:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:48:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:48:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:48:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:48:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:48:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:48:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:48:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:48:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:48:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:48:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:48:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:48:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:48:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:48:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:48:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:48:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:48:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:48:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:48:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:48:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:48:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:48:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:48:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:48:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:48:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:48:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:48:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:48:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-12-18 10:48:57,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:48:57,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237036576] [2021-12-18 10:48:57,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237036576] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:48:57,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:48:57,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:48:57,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544693190] [2021-12-18 10:48:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:48:57,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:48:57,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:48:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:48:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:48:57,514 INFO L87 Difference]: Start difference. First operand 39025 states and 55177 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 10:49:02,765 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 10:49:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:49:04,140 INFO L93 Difference]: Finished difference Result 39199 states and 55488 transitions. [2021-12-18 10:49:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:49:04,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 264 [2021-12-18 10:49:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:49:04,271 INFO L225 Difference]: With dead ends: 39199 [2021-12-18 10:49:04,271 INFO L226 Difference]: Without dead ends: 39197 [2021-12-18 10:49:04,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:49:04,288 INFO L933 BasicCegarLoop]: 2694 mSDtfsCounter, 3303 mSDsluCounter, 5907 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 991 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3599 SdHoareTripleChecker+Valid, 8601 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-18 10:49:04,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3599 Valid, 8601 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-12-18 10:49:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39197 states. [2021-12-18 10:49:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39197 to 39029. [2021-12-18 10:49:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39029 states, 28138 states have (on average 1.3121757054517023) internal successors, (36922), 28528 states have internal predecessors, (36922), 8495 states have call successors, (8495), 2252 states have call predecessors, (8495), 2393 states have return successors, (9763), 8604 states have call predecessors, (9763), 8491 states have call successors, (9763) [2021-12-18 10:49:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39029 states to 39029 states and 55180 transitions. [2021-12-18 10:49:05,993 INFO L78 Accepts]: Start accepts. Automaton has 39029 states and 55180 transitions. Word has length 264 [2021-12-18 10:49:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:49:05,994 INFO L470 AbstractCegarLoop]: Abstraction has 39029 states and 55180 transitions. [2021-12-18 10:49:05,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 10:49:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 39029 states and 55180 transitions. [2021-12-18 10:49:06,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-18 10:49:06,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:49:06,003 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 10, 9, 9, 4, 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] [2021-12-18 10:49:06,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 10:49:06,004 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 10:49:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:49:06,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1850301177, now seen corresponding path program 1 times [2021-12-18 10:49:06,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:49:06,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634632026] [2021-12-18 10:49:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:49:06,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:49:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:49:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:49:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:49:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:49:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:49:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:49:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:49:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:49:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:49:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:49:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:49:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:49:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:49:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:49:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:49:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:49:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:49:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:49:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:49:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:49:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:49:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:49:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:49:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:49:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:49:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:49:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:49:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:49:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 10:49:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2021-12-18 10:49:06,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:49:06,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634632026] [2021-12-18 10:49:06,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634632026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:49:06,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:49:06,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:49:06,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434013770] [2021-12-18 10:49:06,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:49:06,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:49:06,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:49:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:49:06,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:49:06,623 INFO L87 Difference]: Start difference. First operand 39029 states and 55180 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 10:49:12,535 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 10:49:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:49:13,908 INFO L93 Difference]: Finished difference Result 39203 states and 55491 transitions. [2021-12-18 10:49:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:49:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 269 [2021-12-18 10:49:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:49:14,057 INFO L225 Difference]: With dead ends: 39203 [2021-12-18 10:49:14,057 INFO L226 Difference]: Without dead ends: 39201 [2021-12-18 10:49:14,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:49:14,082 INFO L933 BasicCegarLoop]: 2693 mSDtfsCounter, 3303 mSDsluCounter, 5905 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 992 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3599 SdHoareTripleChecker+Valid, 8598 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-18 10:49:14,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3599 Valid, 8598 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-12-18 10:49:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39201 states. [2021-12-18 10:49:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39201 to 39033. [2021-12-18 10:49:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39033 states, 28141 states have (on average 1.3121424256423013) internal successors, (36925), 28531 states have internal predecessors, (36925), 8495 states have call successors, (8495), 2253 states have call predecessors, (8495), 2394 states have return successors, (9763), 8604 states have call predecessors, (9763), 8491 states have call successors, (9763) [2021-12-18 10:49:15,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39033 states to 39033 states and 55183 transitions. [2021-12-18 10:49:15,622 INFO L78 Accepts]: Start accepts. Automaton has 39033 states and 55183 transitions. Word has length 269 [2021-12-18 10:49:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:49:15,623 INFO L470 AbstractCegarLoop]: Abstraction has 39033 states and 55183 transitions. [2021-12-18 10:49:15,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 10:49:15,623 INFO L276 IsEmpty]: Start isEmpty. Operand 39033 states and 55183 transitions. [2021-12-18 10:49:15,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-18 10:49:15,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:49:15,631 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:49:15,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 10:49:15,631 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:49:15,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:49:15,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1177585739, now seen corresponding path program 1 times [2021-12-18 10:49:15,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:49:15,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736964548] [2021-12-18 10:49:15,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:49:15,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:49:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:49:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:49:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:49:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:49:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:49:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:49:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:49:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:49:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:49:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:49:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:49:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:49:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:49:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:49:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:49:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:49:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:49:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:49:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:49:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:49:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 10:49:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:49:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 10:49:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 10:49:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:49:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 10:49:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 10:49:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 10:49:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 10:49:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 10:49:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 10:49:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 10:49:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 10:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 10:49:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 10:49:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2021-12-18 10:49:16,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:49:16,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736964548] [2021-12-18 10:49:16,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736964548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:49:16,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:49:16,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:49:16,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173681162] [2021-12-18 10:49:16,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:49:16,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:49:16,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:49:16,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:49:16,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:49:16,284 INFO L87 Difference]: Start difference. First operand 39033 states and 55183 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:49:28,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:49:30,660 WARN L534 Checker$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 10:49:32,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:49:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:49:37,047 INFO L93 Difference]: Finished difference Result 90449 states and 128060 transitions. [2021-12-18 10:49:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:49:37,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 310 [2021-12-18 10:49:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:49:37,250 INFO L225 Difference]: With dead ends: 90449 [2021-12-18 10:49:37,251 INFO L226 Difference]: Without dead ends: 51814 [2021-12-18 10:49:37,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:49:37,378 INFO L933 BasicCegarLoop]: 4791 mSDtfsCounter, 4389 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 2786 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 7998 SdHoareTripleChecker+Invalid, 8045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2786 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:49:37,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4757 Valid, 7998 Invalid, 8045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2786 Valid, 5257 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2021-12-18 10:49:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51814 states. [2021-12-18 10:49:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51814 to 51585. [2021-12-18 10:49:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51585 states, 37209 states have (on average 1.3124512886667203) internal successors, (48835), 37709 states have internal predecessors, (48835), 11205 states have call successors, (11205), 2977 states have call predecessors, (11205), 3168 states have return successors, (12893), 11372 states have call predecessors, (12893), 11201 states have call successors, (12893) [2021-12-18 10:49:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51585 states to 51585 states and 72933 transitions. [2021-12-18 10:49:39,803 INFO L78 Accepts]: Start accepts. Automaton has 51585 states and 72933 transitions. Word has length 310 [2021-12-18 10:49:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:49:39,804 INFO L470 AbstractCegarLoop]: Abstraction has 51585 states and 72933 transitions. [2021-12-18 10:49:39,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:49:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 51585 states and 72933 transitions. [2021-12-18 10:49:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-18 10:49:39,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:49:39,815 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:49:39,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 10:49:39,816 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:49:39,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:49:39,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1763861961, now seen corresponding path program 1 times [2021-12-18 10:49:39,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:49:39,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639181354] [2021-12-18 10:49:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:49:39,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:49:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:49:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:49:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:49:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:49:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:49:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:49:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:49:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:49:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:49:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:49:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:49:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:49:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:49:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:49:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:49:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:49:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:49:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:49:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:49:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:49:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:49:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 10:49:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:49:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 10:49:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 10:49:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:49:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 10:49:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 10:49:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 10:49:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 10:49:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 10:49:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 10:49:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 10:49:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 10:49:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 10:49:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 10:49:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:49:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2021-12-18 10:49:40,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:49:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639181354] [2021-12-18 10:49:40,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639181354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:49:40,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:49:40,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 10:49:40,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007417691] [2021-12-18 10:49:40,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:49:40,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 10:49:40,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:49:40,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 10:49:40,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 10:49:40,425 INFO L87 Difference]: Start difference. First operand 51585 states and 72933 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (37), 5 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 10:49:51,228 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 10:49:53,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:49:54,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:49:56,453 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 10:49:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:49:59,865 INFO L93 Difference]: Finished difference Result 51815 states and 73346 transitions. [2021-12-18 10:49:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 10:49:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (37), 5 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 310 [2021-12-18 10:49:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:50:00,143 INFO L225 Difference]: With dead ends: 51815 [2021-12-18 10:50:00,144 INFO L226 Difference]: Without dead ends: 51813 [2021-12-18 10:50:00,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-18 10:50:00,190 INFO L933 BasicCegarLoop]: 2489 mSDtfsCounter, 4466 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 2452 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4603 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 7592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2452 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:50:00,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4603 Valid, 6018 Invalid, 7592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2452 Valid, 5137 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2021-12-18 10:50:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51813 states. [2021-12-18 10:50:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51813 to 51589. [2021-12-18 10:50:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51589 states, 37212 states have (on average 1.3124260991078147) internal successors, (48838), 37712 states have internal predecessors, (48838), 11205 states have call successors, (11205), 2978 states have call predecessors, (11205), 3169 states have return successors, (12893), 11372 states have call predecessors, (12893), 11201 states have call successors, (12893) [2021-12-18 10:50:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51589 states to 51589 states and 72936 transitions. [2021-12-18 10:50:02,668 INFO L78 Accepts]: Start accepts. Automaton has 51589 states and 72936 transitions. Word has length 310 [2021-12-18 10:50:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:50:02,668 INFO L470 AbstractCegarLoop]: Abstraction has 51589 states and 72936 transitions. [2021-12-18 10:50:02,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (37), 5 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 10:50:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 51589 states and 72936 transitions. [2021-12-18 10:50:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-12-18 10:50:02,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:50:02,677 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 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] [2021-12-18 10:50:02,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 10:50:02,678 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 10:50:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:50:02,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1611352171, now seen corresponding path program 1 times [2021-12-18 10:50:02,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:50:02,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676179696] [2021-12-18 10:50:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:50:02,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:50:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:50:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:50:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:50:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:50:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:50:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:50:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:50:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:50:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:50:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:50:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:50:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:50:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:50:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:50:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:50:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:50:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:50:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:02,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:50:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:50:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:50:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 10:50:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:50:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 10:50:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 10:50:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:50:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:50:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 10:50:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 10:50:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 10:50:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 10:50:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:50:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 10:50:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 10:50:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 10:50:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 10:50:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 10:50:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2021-12-18 10:50:03,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:50:03,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676179696] [2021-12-18 10:50:03,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676179696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:50:03,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:50:03,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:50:03,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247060704] [2021-12-18 10:50:03,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:50:03,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:50:03,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:50:03,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:50:03,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:50:03,317 INFO L87 Difference]: Start difference. First operand 51589 states and 72936 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 10:50:14,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:50:17,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:50:19,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:50:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:50:23,571 INFO L93 Difference]: Finished difference Result 115677 states and 163665 transitions. [2021-12-18 10:50:23,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:50:23,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 314 [2021-12-18 10:50:23,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:50:23,795 INFO L225 Difference]: With dead ends: 115677 [2021-12-18 10:50:23,796 INFO L226 Difference]: Without dead ends: 64486 [2021-12-18 10:50:24,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:50:24,071 INFO L933 BasicCegarLoop]: 4807 mSDtfsCounter, 4492 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 5184 mSolverCounterSat, 2859 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4858 SdHoareTripleChecker+Valid, 8014 SdHoareTripleChecker+Invalid, 8044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2859 IncrementalHoareTripleChecker+Valid, 5184 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:50:24,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4858 Valid, 8014 Invalid, 8044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2859 Valid, 5184 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 10:50:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64486 states. [2021-12-18 10:50:26,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64486 to 64137. [2021-12-18 10:50:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64137 states, 46260 states have (on average 1.312753999135322) internal successors, (60728), 46870 states have internal predecessors, (60728), 13927 states have call successors, (13927), 3714 states have call predecessors, (13927), 3947 states have return successors, (16035), 14144 states have call predecessors, (16035), 13923 states have call successors, (16035) [2021-12-18 10:50:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64137 states to 64137 states and 90690 transitions. [2021-12-18 10:50:26,634 INFO L78 Accepts]: Start accepts. Automaton has 64137 states and 90690 transitions. Word has length 314 [2021-12-18 10:50:26,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:50:26,635 INFO L470 AbstractCegarLoop]: Abstraction has 64137 states and 90690 transitions. [2021-12-18 10:50:26,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 10:50:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 64137 states and 90690 transitions. [2021-12-18 10:50:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-18 10:50:26,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:50:26,648 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 12, 11, 11, 4, 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] [2021-12-18 10:50:26,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 10:50:26,649 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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 10:50:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:50:26,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1967475097, now seen corresponding path program 1 times [2021-12-18 10:50:26,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:50:26,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287045982] [2021-12-18 10:50:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:50:26,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:50:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:50:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:50:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:50:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:50:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:50:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:50:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:50:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:50:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:50:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:50:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:50:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:50:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:50:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:50:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:50:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:50:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:50:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:50:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:50:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:50:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:50:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:50:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:50:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:50:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:50:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:50:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:50:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:50:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 10:50:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 10:50:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 10:50:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1014 trivial. 0 not checked. [2021-12-18 10:50:27,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:50:27,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287045982] [2021-12-18 10:50:27,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287045982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:50:27,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:50:27,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:50:27,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267158257] [2021-12-18 10:50:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:50:27,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:50:27,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:50:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:50:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:50:27,341 INFO L87 Difference]: Start difference. First operand 64137 states and 90690 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 10:50:32,979 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 10:50:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:50:34,644 INFO L93 Difference]: Finished difference Result 64423 states and 91205 transitions. [2021-12-18 10:50:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:50:34,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 279 [2021-12-18 10:50:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:50:34,886 INFO L225 Difference]: With dead ends: 64423 [2021-12-18 10:50:34,886 INFO L226 Difference]: Without dead ends: 64421 [2021-12-18 10:50:34,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:50:34,914 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 3301 mSDsluCounter, 5921 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 990 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 8620 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 990 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:50:34,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3593 Valid, 8620 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [990 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-12-18 10:50:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64421 states. [2021-12-18 10:50:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64421 to 64141. [2021-12-18 10:50:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64141 states, 46263 states have (on average 1.3127337180900505) internal successors, (60731), 46873 states have internal predecessors, (60731), 13927 states have call successors, (13927), 3715 states have call predecessors, (13927), 3948 states have return successors, (16035), 14144 states have call predecessors, (16035), 13923 states have call successors, (16035) [2021-12-18 10:50:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64141 states to 64141 states and 90693 transitions. [2021-12-18 10:50:37,886 INFO L78 Accepts]: Start accepts. Automaton has 64141 states and 90693 transitions. Word has length 279 [2021-12-18 10:50:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:50:37,887 INFO L470 AbstractCegarLoop]: Abstraction has 64141 states and 90693 transitions. [2021-12-18 10:50:37,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 10:50:37,888 INFO L276 IsEmpty]: Start isEmpty. Operand 64141 states and 90693 transitions. [2021-12-18 10:50:37,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-12-18 10:50:37,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:50:37,898 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 13, 12, 12, 12, 12, 12, 12, 12, 12, 4, 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] [2021-12-18 10:50:37,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 10:50:37,899 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 10:50:37,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:50:37,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1709695196, now seen corresponding path program 1 times [2021-12-18 10:50:37,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:50:37,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944492430] [2021-12-18 10:50:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:50:37,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:50:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:50:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:50:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:50:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:50:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:50:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:50:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:50:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:50:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:50:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:50:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:50:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:50:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 10:50:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:50:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:50:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 10:50:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:50:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:50:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:50:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:50:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 10:50:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:50:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:50:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:50:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:50:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 10:50:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 10:50:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:50:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:50:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 10:50:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 10:50:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 10:50:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 10:50:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:50:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2021-12-18 10:50:38,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:50:38,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944492430] [2021-12-18 10:50:38,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944492430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:50:38,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:50:38,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:50:38,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370095509] [2021-12-18 10:50:38,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:50:38,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:50:38,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:50:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:50:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:50:38,416 INFO L87 Difference]: Start difference. First operand 64141 states and 90693 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)