./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:31:10,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:31:10,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:31:10,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:31:10,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:31:10,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:31:10,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:31:10,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:31:10,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:31:10,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:31:10,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:31:10,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:31:10,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:31:10,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:31:10,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:31:10,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:31:10,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:31:10,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:31:10,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:31:10,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:31:10,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:31:10,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:31:10,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:31:10,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:31:10,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:31:10,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:31:10,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:31:10,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:31:10,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:31:10,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:31:10,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:31:10,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:31:10,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:31:10,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:31:10,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:31:10,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:31:10,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:31:10,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:31:10,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:31:10,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:31:10,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:31:10,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:31:10,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:31:10,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:31:10,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:31:10,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:31:10,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:31:10,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:31:10,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:31:10,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:31:10,148 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:31:10,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:31:10,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:31:10,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:31:10,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:31:10,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:31:10,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:31:10,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:31:10,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:31:10,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:31:10,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:31:10,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:31:10,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:31:10,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:31:10,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:31:10,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:31:10,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:31:10,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:31:10,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2021-12-22 15:31:10,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:31:10,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:31:10,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:31:10,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:31:10,359 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:31:10,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-12-22 15:31:10,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34753dc03/e7f1be477730423089666a02fddf71b5/FLAG493608d17 [2021-12-22 15:31:11,033 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:31:11,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-12-22 15:31:11,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34753dc03/e7f1be477730423089666a02fddf71b5/FLAG493608d17 [2021-12-22 15:31:11,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34753dc03/e7f1be477730423089666a02fddf71b5 [2021-12-22 15:31:11,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:31:11,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:31:11,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:31:11,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:31:11,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:31:11,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:11" (1/1) ... [2021-12-22 15:31:11,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cf81ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:11, skipping insertion in model container [2021-12-22 15:31:11,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:11" (1/1) ... [2021-12-22 15:31:11,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:31:11,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:31:13,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-12-22 15:31:13,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-12-22 15:31:13,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-12-22 15:31:13,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-12-22 15:31:13,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:31:13,284 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:31:13,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-12-22 15:31:13,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-12-22 15:31:13,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-12-22 15:31:13,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-12-22 15:31:13,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:31:13,668 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:31:13,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13 WrapperNode [2021-12-22 15:31:13,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:31:13,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:31:13,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:31:13,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:31:13,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,857 INFO L137 Inliner]: procedures = 391, calls = 1784, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 4172 [2021-12-22 15:31:13,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:31:13,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:31:13,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:31:13,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:31:13,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:13,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:14,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:14,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:31:14,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:31:14,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:31:14,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:31:14,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (1/1) ... [2021-12-22 15:31:14,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:31:14,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:31:14,095 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) [2021-12-22 15:31:14,102 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 [2021-12-22 15:31:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:31:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:31:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:31:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:31:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:31:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:31:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:31:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:31:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:31:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:31:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-12-22 15:31:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-12-22 15:31:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-22 15:31:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-22 15:31:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2021-12-22 15:31:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2021-12-22 15:31:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2021-12-22 15:31:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2021-12-22 15:31:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 15:31:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2021-12-22 15:31:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2021-12-22 15:31:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:31:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:31:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-22 15:31:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-22 15:31:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:31:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:31:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:31:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:31:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:31:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:31:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:31:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 15:31:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 15:31:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-22 15:31:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-22 15:31:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:31:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:31:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2021-12-22 15:31:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:31:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:31:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:31:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:31:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:31:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:31:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:31:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2021-12-22 15:31:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2021-12-22 15:31:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2021-12-22 15:31:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2021-12-22 15:31:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:31:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:31:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:31:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:31:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2021-12-22 15:31:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2021-12-22 15:31:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:31:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:31:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2021-12-22 15:31:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2021-12-22 15:31:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:31:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:31:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2021-12-22 15:31:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2021-12-22 15:31:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2021-12-22 15:31:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2021-12-22 15:31:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:31:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:31:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:31:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2021-12-22 15:31:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2021-12-22 15:31:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2021-12-22 15:31:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2021-12-22 15:31:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:31:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:31:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:31:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:31:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:31:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:31:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:31:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:31:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:31:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:31:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:31:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:31:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:31:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:31:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:31:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2021-12-22 15:31:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2021-12-22 15:31:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:31:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:31:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:31:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:31:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:31:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:31:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:31:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:31:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2021-12-22 15:31:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2021-12-22 15:31:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:31:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:31:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:31:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:31:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:31:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:31:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:31:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:31:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:31:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:31:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:31:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:31:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:31:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:31:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:31:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:31:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:31:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-22 15:31:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-22 15:31:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:31:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:31:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:31:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:31:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:31:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:31:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:31:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:31:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2021-12-22 15:31:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2021-12-22 15:31:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2021-12-22 15:31:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2021-12-22 15:31:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:31:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:31:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:31:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:31:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:31:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:31:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2021-12-22 15:31:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2021-12-22 15:31:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:31:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-22 15:31:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-22 15:31:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:31:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:31:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2021-12-22 15:31:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2021-12-22 15:31:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2021-12-22 15:31:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2021-12-22 15:31:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2021-12-22 15:31:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2021-12-22 15:31:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-22 15:31:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-22 15:31:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:31:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:31:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2021-12-22 15:31:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2021-12-22 15:31:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2021-12-22 15:31:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2021-12-22 15:31:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:31:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:31:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2021-12-22 15:31:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2021-12-22 15:31:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-22 15:31:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-22 15:31:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:31:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-22 15:31:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-22 15:31:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:31:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:31:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2021-12-22 15:31:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2021-12-22 15:31:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-22 15:31:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-22 15:31:14,718 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:31:14,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:31:15,074 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:31:16,449 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:31:16,450 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 15:31:16,554 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret679#1 := schedule_timeout_interruptible(1); srcloc: null [2021-12-22 15:31:16,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret679#1 && #t~ret679#1 <= 9223372036854775807;havoc #t~ret679#1; [2021-12-22 15:31:16,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616; [2021-12-22 15:31:16,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616); [2021-12-22 15:31:16,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2021-12-22 15:31:16,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2021-12-22 15:31:16,605 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:31:16,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:31:16,617 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 15:31:16,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:31:16 BoogieIcfgContainer [2021-12-22 15:31:16,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:31:16,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:31:16,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:31:16,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:31:16,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:31:11" (1/3) ... [2021-12-22 15:31:16,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f10c867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:31:16, skipping insertion in model container [2021-12-22 15:31:16,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:13" (2/3) ... [2021-12-22 15:31:16,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f10c867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:31:16, skipping insertion in model container [2021-12-22 15:31:16,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:31:16" (3/3) ... [2021-12-22 15:31:16,628 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-12-22 15:31:16,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:31:16,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:31:16,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:31:16,699 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 [2021-12-22 15:31:16,700 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:31:16,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 1742 states, 1093 states have (on average 1.2909423604757548) internal successors, (1411), 1143 states have internal predecessors, (1411), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) [2021-12-22 15:31:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-22 15:31:16,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:16,754 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:16,755 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:16,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1862336508, now seen corresponding path program 1 times [2021-12-22 15:31:16,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:16,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321994036] [2021-12-22 15:31:16,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:16,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 15:31:17,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:17,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321994036] [2021-12-22 15:31:17,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321994036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:17,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:17,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:17,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250187352] [2021-12-22 15:31:17,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:17,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:17,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:17,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:17,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:17,196 INFO L87 Difference]: Start difference. First operand has 1742 states, 1093 states have (on average 1.2909423604757548) internal successors, (1411), 1143 states have internal predecessors, (1411), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:20,990 INFO L93 Difference]: Finished difference Result 5271 states and 7907 transitions. [2021-12-22 15:31:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2021-12-22 15:31:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:21,020 INFO L225 Difference]: With dead ends: 5271 [2021-12-22 15:31:21,021 INFO L226 Difference]: Without dead ends: 3532 [2021-12-22 15:31:21,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:21,039 INFO L933 BasicCegarLoop]: 2449 mSDtfsCounter, 3111 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 2123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:21,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3653 Valid, 4749 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2123 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-22 15:31:21,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2021-12-22 15:31:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3370. [2021-12-22 15:31:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 2117 states have (on average 1.2824752007557865) internal successors, (2715), 2213 states have internal predecessors, (2715), 1095 states have call successors, (1095), 156 states have call predecessors, (1095), 155 states have return successors, (1092), 1060 states have call predecessors, (1092), 1092 states have call successors, (1092) [2021-12-22 15:31:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 4902 transitions. [2021-12-22 15:31:21,279 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 4902 transitions. Word has length 68 [2021-12-22 15:31:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:21,279 INFO L470 AbstractCegarLoop]: Abstraction has 3370 states and 4902 transitions. [2021-12-22 15:31:21,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 4902 transitions. [2021-12-22 15:31:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-22 15:31:21,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:21,283 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:21,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:31:21,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:21,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 323210058, now seen corresponding path program 1 times [2021-12-22 15:31:21,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:21,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94362655] [2021-12-22 15:31:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:21,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:31:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 15:31:21,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94362655] [2021-12-22 15:31:21,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94362655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:21,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:21,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:21,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296742033] [2021-12-22 15:31:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:21,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:21,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:21,569 INFO L87 Difference]: Start difference. First operand 3370 states and 4902 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:24,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:24,503 INFO L93 Difference]: Finished difference Result 9908 states and 14506 transitions. [2021-12-22 15:31:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2021-12-22 15:31:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:24,589 INFO L225 Difference]: With dead ends: 9908 [2021-12-22 15:31:24,589 INFO L226 Difference]: Without dead ends: 6551 [2021-12-22 15:31:24,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:24,624 INFO L933 BasicCegarLoop]: 2714 mSDtfsCounter, 2649 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 1959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1959 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:24,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 5101 Invalid, 3999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1959 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-22 15:31:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2021-12-22 15:31:24,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 6268. [2021-12-22 15:31:24,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6268 states, 3912 states have (on average 1.2845092024539877) internal successors, (5025), 4098 states have internal predecessors, (5025), 2060 states have call successors, (2060), 294 states have call predecessors, (2060), 293 states have return successors, (2079), 1983 states have call predecessors, (2079), 2057 states have call successors, (2079) [2021-12-22 15:31:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6268 states to 6268 states and 9164 transitions. [2021-12-22 15:31:25,000 INFO L78 Accepts]: Start accepts. Automaton has 6268 states and 9164 transitions. Word has length 73 [2021-12-22 15:31:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:25,001 INFO L470 AbstractCegarLoop]: Abstraction has 6268 states and 9164 transitions. [2021-12-22 15:31:25,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 6268 states and 9164 transitions. [2021-12-22 15:31:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-22 15:31:25,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:25,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:25,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:31:25,006 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)] === [2021-12-22 15:31:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:25,006 INFO L85 PathProgramCache]: Analyzing trace with hash -697907898, now seen corresponding path program 1 times [2021-12-22 15:31:25,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:25,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579100031] [2021-12-22 15:31:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:25,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:31:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 15:31:25,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:25,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579100031] [2021-12-22 15:31:25,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579100031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:25,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:25,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:25,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056818840] [2021-12-22 15:31:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:25,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:25,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:25,186 INFO L87 Difference]: Start difference. First operand 6268 states and 9164 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:29,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:29,319 INFO L93 Difference]: Finished difference Result 18620 states and 27306 transitions. [2021-12-22 15:31:29,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:29,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 76 [2021-12-22 15:31:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:29,397 INFO L225 Difference]: With dead ends: 18620 [2021-12-22 15:31:29,398 INFO L226 Difference]: Without dead ends: 12365 [2021-12-22 15:31:29,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:29,435 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 2918 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 2116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3425 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 4203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2116 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:29,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3425 Valid, 4680 Invalid, 4203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2116 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-22 15:31:29,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12365 states. [2021-12-22 15:31:30,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12365 to 11844. [2021-12-22 15:31:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11844 states, 7366 states have (on average 1.281971219114852) internal successors, (9443), 7722 states have internal predecessors, (9443), 3906 states have call successors, (3906), 572 states have call predecessors, (3906), 569 states have return successors, (3949), 3753 states have call predecessors, (3949), 3903 states have call successors, (3949) [2021-12-22 15:31:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11844 states to 11844 states and 17298 transitions. [2021-12-22 15:31:30,203 INFO L78 Accepts]: Start accepts. Automaton has 11844 states and 17298 transitions. Word has length 76 [2021-12-22 15:31:30,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:30,204 INFO L470 AbstractCegarLoop]: Abstraction has 11844 states and 17298 transitions. [2021-12-22 15:31:30,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 11844 states and 17298 transitions. [2021-12-22 15:31:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:31:30,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:30,207 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:30,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:31:30,208 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)] === [2021-12-22 15:31:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1005586591, now seen corresponding path program 1 times [2021-12-22 15:31:30,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:30,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777725165] [2021-12-22 15:31:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:30,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 15:31:30,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:30,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777725165] [2021-12-22 15:31:30,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777725165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:30,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:31:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162846679] [2021-12-22 15:31:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:30,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:31:30,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:30,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:31:30,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:31:30,429 INFO L87 Difference]: Start difference. First operand 11844 states and 17298 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:38,046 INFO L93 Difference]: Finished difference Result 24202 states and 35207 transitions. [2021-12-22 15:31:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:31:38,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2021-12-22 15:31:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:38,106 INFO L225 Difference]: With dead ends: 24202 [2021-12-22 15:31:38,107 INFO L226 Difference]: Without dead ends: 12371 [2021-12-22 15:31:38,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:31:38,147 INFO L933 BasicCegarLoop]: 3296 mSDtfsCounter, 6206 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 4942 mSolverCounterSat, 4768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 6474 SdHoareTripleChecker+Invalid, 9710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4768 IncrementalHoareTripleChecker+Valid, 4942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:38,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6872 Valid, 6474 Invalid, 9710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4768 Valid, 4942 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-22 15:31:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12371 states. [2021-12-22 15:31:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12371 to 11707. [2021-12-22 15:31:38,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11707 states, 7347 states have (on average 1.2709949639308562) internal successors, (9338), 7701 states have internal predecessors, (9338), 3722 states have call successors, (3722), 642 states have call predecessors, (3722), 635 states have return successors, (3742), 3572 states have call predecessors, (3742), 3719 states have call successors, (3742) [2021-12-22 15:31:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11707 states to 11707 states and 16802 transitions. [2021-12-22 15:31:38,642 INFO L78 Accepts]: Start accepts. Automaton has 11707 states and 16802 transitions. Word has length 79 [2021-12-22 15:31:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:38,643 INFO L470 AbstractCegarLoop]: Abstraction has 11707 states and 16802 transitions. [2021-12-22 15:31:38,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 15:31:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 11707 states and 16802 transitions. [2021-12-22 15:31:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 15:31:38,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:38,648 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:38,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:31:38,649 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)] === [2021-12-22 15:31:38,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash -39043552, now seen corresponding path program 1 times [2021-12-22 15:31:38,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:38,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181453512] [2021-12-22 15:31:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:38,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:31:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:31:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:31:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:31:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-22 15:31:38,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:38,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181453512] [2021-12-22 15:31:38,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181453512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:38,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:38,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:38,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667929701] [2021-12-22 15:31:38,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:38,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:38,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:38,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:38,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:38,840 INFO L87 Difference]: Start difference. First operand 11707 states and 16802 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:31:41,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:41,220 INFO L93 Difference]: Finished difference Result 23960 states and 34498 transitions. [2021-12-22 15:31:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:31:41,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2021-12-22 15:31:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:41,281 INFO L225 Difference]: With dead ends: 23960 [2021-12-22 15:31:41,281 INFO L226 Difference]: Without dead ends: 12307 [2021-12-22 15:31:41,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:41,325 INFO L933 BasicCegarLoop]: 2205 mSDtfsCounter, 727 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:41,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 4517 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 15:31:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12307 states. [2021-12-22 15:31:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12307 to 11707. [2021-12-22 15:31:41,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11707 states, 7347 states have (on average 1.2693616442085205) internal successors, (9326), 7701 states have internal predecessors, (9326), 3722 states have call successors, (3722), 642 states have call predecessors, (3722), 635 states have return successors, (3742), 3572 states have call predecessors, (3742), 3719 states have call successors, (3742) [2021-12-22 15:31:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11707 states to 11707 states and 16790 transitions. [2021-12-22 15:31:41,982 INFO L78 Accepts]: Start accepts. Automaton has 11707 states and 16790 transitions. Word has length 107 [2021-12-22 15:31:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:41,983 INFO L470 AbstractCegarLoop]: Abstraction has 11707 states and 16790 transitions. [2021-12-22 15:31:41,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:31:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 11707 states and 16790 transitions. [2021-12-22 15:31:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-22 15:31:41,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:41,984 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:41,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:31:41,985 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)] === [2021-12-22 15:31:41,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 54654507, now seen corresponding path program 1 times [2021-12-22 15:31:41,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:41,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234805934] [2021-12-22 15:31:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:41,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:31:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:31:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:31:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:31:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:31:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:31:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:31:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-22 15:31:42,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:42,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234805934] [2021-12-22 15:31:42,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234805934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:42,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:42,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:42,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14208301] [2021-12-22 15:31:42,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:42,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:42,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:42,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:42,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:42,153 INFO L87 Difference]: Start difference. First operand 11707 states and 16790 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 15:31:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:46,589 INFO L93 Difference]: Finished difference Result 35664 states and 51437 transitions. [2021-12-22 15:31:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2021-12-22 15:31:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:46,696 INFO L225 Difference]: With dead ends: 35664 [2021-12-22 15:31:46,696 INFO L226 Difference]: Without dead ends: 24011 [2021-12-22 15:31:46,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:46,742 INFO L933 BasicCegarLoop]: 2602 mSDtfsCounter, 3072 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 2109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 4223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2109 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:46,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3609 Valid, 5036 Invalid, 4223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2109 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-22 15:31:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24011 states. [2021-12-22 15:31:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24011 to 22789. [2021-12-22 15:31:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22789 states, 14272 states have (on average 1.2720011210762332) internal successors, (18154), 14946 states have internal predecessors, (18154), 7281 states have call successors, (7281), 1246 states have call predecessors, (7281), 1233 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:31:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22789 states to 22789 states and 32759 transitions. [2021-12-22 15:31:47,703 INFO L78 Accepts]: Start accepts. Automaton has 22789 states and 32759 transitions. Word has length 123 [2021-12-22 15:31:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:47,704 INFO L470 AbstractCegarLoop]: Abstraction has 22789 states and 32759 transitions. [2021-12-22 15:31:47,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 15:31:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 22789 states and 32759 transitions. [2021-12-22 15:31:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-22 15:31:47,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:47,706 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:47,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:31:47,707 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)] === [2021-12-22 15:31:47,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:47,707 INFO L85 PathProgramCache]: Analyzing trace with hash 477356333, now seen corresponding path program 1 times [2021-12-22 15:31:47,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:47,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816127710] [2021-12-22 15:31:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:47,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:31:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:31:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:31:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:31:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:31:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:31:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:31:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-22 15:31:47,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:47,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816127710] [2021-12-22 15:31:47,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816127710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:47,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:47,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:47,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333443340] [2021-12-22 15:31:47,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:47,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:47,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:47,902 INFO L87 Difference]: Start difference. First operand 22789 states and 32759 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:31:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:51,258 INFO L93 Difference]: Finished difference Result 23995 states and 34672 transitions. [2021-12-22 15:31:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:31:51,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2021-12-22 15:31:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:51,327 INFO L225 Difference]: With dead ends: 23995 [2021-12-22 15:31:51,328 INFO L226 Difference]: Without dead ends: 23993 [2021-12-22 15:31:51,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:31:51,338 INFO L933 BasicCegarLoop]: 2199 mSDtfsCounter, 2404 mSDsluCounter, 3926 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 1580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 6125 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1580 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:51,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 6125 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1580 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-22 15:31:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23993 states. [2021-12-22 15:31:52,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23993 to 22793. [2021-12-22 15:31:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22793 states, 14275 states have (on average 1.2719439579684764) internal successors, (18157), 14949 states have internal predecessors, (18157), 7281 states have call successors, (7281), 1247 states have call predecessors, (7281), 1234 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:31:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22793 states to 22793 states and 32762 transitions. [2021-12-22 15:31:52,386 INFO L78 Accepts]: Start accepts. Automaton has 22793 states and 32762 transitions. Word has length 123 [2021-12-22 15:31:52,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:52,386 INFO L470 AbstractCegarLoop]: Abstraction has 22793 states and 32762 transitions. [2021-12-22 15:31:52,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:31:52,387 INFO L276 IsEmpty]: Start isEmpty. Operand 22793 states and 32762 transitions. [2021-12-22 15:31:52,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 15:31:52,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:52,388 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:52,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:31:52,388 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)] === [2021-12-22 15:31:52,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:52,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1319786659, now seen corresponding path program 1 times [2021-12-22 15:31:52,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:52,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930731739] [2021-12-22 15:31:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:52,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:31:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:31:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:31:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:31:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:31:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:31:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:31:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 15:31:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-22 15:31:52,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:52,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930731739] [2021-12-22 15:31:52,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930731739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:52,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:52,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:52,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501710308] [2021-12-22 15:31:52,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:52,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:52,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:52,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:52,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:52,584 INFO L87 Difference]: Start difference. First operand 22793 states and 32762 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:31:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:56,003 INFO L93 Difference]: Finished difference Result 23999 states and 34675 transitions. [2021-12-22 15:31:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:31:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2021-12-22 15:31:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:56,155 INFO L225 Difference]: With dead ends: 23999 [2021-12-22 15:31:56,156 INFO L226 Difference]: Without dead ends: 23997 [2021-12-22 15:31:56,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:31:56,166 INFO L933 BasicCegarLoop]: 2197 mSDtfsCounter, 2399 mSDsluCounter, 3915 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 1581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1581 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:56,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2613 Valid, 6112 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1581 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-22 15:31:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23997 states. [2021-12-22 15:31:56,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23997 to 22797. [2021-12-22 15:31:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22797 states, 14278 states have (on average 1.2718868188821963) internal successors, (18160), 14952 states have internal predecessors, (18160), 7281 states have call successors, (7281), 1248 states have call predecessors, (7281), 1235 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:31:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22797 states to 22797 states and 32765 transitions. [2021-12-22 15:31:57,127 INFO L78 Accepts]: Start accepts. Automaton has 22797 states and 32765 transitions. Word has length 128 [2021-12-22 15:31:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:57,128 INFO L470 AbstractCegarLoop]: Abstraction has 22797 states and 32765 transitions. [2021-12-22 15:31:57,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:31:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand 22797 states and 32765 transitions. [2021-12-22 15:31:57,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-22 15:31:57,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:57,131 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:57,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:31:57,131 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)] === [2021-12-22 15:31:57,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash 849696493, now seen corresponding path program 1 times [2021-12-22 15:31:57,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:57,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173969888] [2021-12-22 15:31:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:57,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:31:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:31:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:31:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:31:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:31:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:31:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:31:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:31:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 15:31:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:31:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-22 15:31:57,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:57,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173969888] [2021-12-22 15:31:57,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173969888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:57,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:57,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:57,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629425389] [2021-12-22 15:31:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:57,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:57,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:57,344 INFO L87 Difference]: Start difference. First operand 22797 states and 32765 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:32:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:32:00,887 INFO L93 Difference]: Finished difference Result 24003 states and 34678 transitions. [2021-12-22 15:32:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:32:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2021-12-22 15:32:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:32:00,977 INFO L225 Difference]: With dead ends: 24003 [2021-12-22 15:32:00,977 INFO L226 Difference]: Without dead ends: 24001 [2021-12-22 15:32:00,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:32:00,994 INFO L933 BasicCegarLoop]: 2197 mSDtfsCounter, 2400 mSDsluCounter, 3917 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 1582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 6114 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:32:00,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2612 Valid, 6114 Invalid, 4088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1582 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-22 15:32:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24001 states. [2021-12-22 15:32:01,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24001 to 22801. [2021-12-22 15:32:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22801 states, 14281 states have (on average 1.2718297038022548) internal successors, (18163), 14955 states have internal predecessors, (18163), 7281 states have call successors, (7281), 1249 states have call predecessors, (7281), 1236 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:32:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22801 states to 22801 states and 32768 transitions. [2021-12-22 15:32:01,898 INFO L78 Accepts]: Start accepts. Automaton has 22801 states and 32768 transitions. Word has length 133 [2021-12-22 15:32:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:32:01,899 INFO L470 AbstractCegarLoop]: Abstraction has 22801 states and 32768 transitions. [2021-12-22 15:32:01,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:32:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 22801 states and 32768 transitions. [2021-12-22 15:32:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-22 15:32:01,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:01,901 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:32:01,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:32:01,902 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)] === [2021-12-22 15:32:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1063126755, now seen corresponding path program 1 times [2021-12-22 15:32:01,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351969567] [2021-12-22 15:32:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:02,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:32:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:32:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:32:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:32:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:32:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:32:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:32:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:32:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:32:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:32:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:32:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:32:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 15:32:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:32:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:32:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-12-22 15:32:02,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:32:02,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351969567] [2021-12-22 15:32:02,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351969567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:32:02,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:32:02,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:32:02,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204849942] [2021-12-22 15:32:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:32:02,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:32:02,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:32:02,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:32:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:32:02,221 INFO L87 Difference]: Start difference. First operand 22801 states and 32768 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:32:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:32:05,392 INFO L93 Difference]: Finished difference Result 24007 states and 34681 transitions. [2021-12-22 15:32:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:32:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2021-12-22 15:32:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:32:05,483 INFO L225 Difference]: With dead ends: 24007 [2021-12-22 15:32:05,483 INFO L226 Difference]: Without dead ends: 24005 [2021-12-22 15:32:05,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:32:05,503 INFO L933 BasicCegarLoop]: 2202 mSDtfsCounter, 2396 mSDsluCounter, 3926 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 1577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2609 SdHoareTripleChecker+Valid, 6128 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1577 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:32:05,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2609 Valid, 6128 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1577 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-22 15:32:05,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24005 states. [2021-12-22 15:32:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24005 to 22805. [2021-12-22 15:32:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22805 states, 14284 states have (on average 1.2717726127135256) internal successors, (18166), 14958 states have internal predecessors, (18166), 7281 states have call successors, (7281), 1250 states have call predecessors, (7281), 1237 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:32:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22805 states to 22805 states and 32771 transitions. [2021-12-22 15:32:06,533 INFO L78 Accepts]: Start accepts. Automaton has 22805 states and 32771 transitions. Word has length 138 [2021-12-22 15:32:06,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:32:06,533 INFO L470 AbstractCegarLoop]: Abstraction has 22805 states and 32771 transitions. [2021-12-22 15:32:06,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:32:06,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22805 states and 32771 transitions. [2021-12-22 15:32:06,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-22 15:32:06,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:06,536 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:32:06,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:32:06,536 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)] === [2021-12-22 15:32:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1396722861, now seen corresponding path program 1 times [2021-12-22 15:32:06,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:06,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135002915] [2021-12-22 15:32:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:32:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:32:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:32:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:32:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:32:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:32:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:32:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:32:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:32:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:32:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:32:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:32:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 15:32:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:32:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:32:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 15:32:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-22 15:32:06,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:32:06,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135002915] [2021-12-22 15:32:06,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135002915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:32:06,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:32:06,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:32:06,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263977033] [2021-12-22 15:32:06,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:32:06,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:32:06,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:32:06,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:32:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:32:06,763 INFO L87 Difference]: Start difference. First operand 22805 states and 32771 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:32:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:32:09,801 INFO L93 Difference]: Finished difference Result 24011 states and 34684 transitions. [2021-12-22 15:32:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:32:09,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2021-12-22 15:32:09,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:32:09,894 INFO L225 Difference]: With dead ends: 24011 [2021-12-22 15:32:09,894 INFO L226 Difference]: Without dead ends: 24009 [2021-12-22 15:32:09,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:32:09,911 INFO L933 BasicCegarLoop]: 2196 mSDtfsCounter, 2400 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 1580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1580 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:32:09,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2613 Valid, 6110 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1580 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 15:32:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24009 states. [2021-12-22 15:32:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24009 to 22809. [2021-12-22 15:32:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22809 states, 14287 states have (on average 1.271715545600896) internal successors, (18169), 14961 states have internal predecessors, (18169), 7281 states have call successors, (7281), 1251 states have call predecessors, (7281), 1238 states have return successors, (7324), 7014 states have call predecessors, (7324), 7278 states have call successors, (7324) [2021-12-22 15:32:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22809 states to 22809 states and 32774 transitions. [2021-12-22 15:32:11,012 INFO L78 Accepts]: Start accepts. Automaton has 22809 states and 32774 transitions. Word has length 143 [2021-12-22 15:32:11,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:32:11,013 INFO L470 AbstractCegarLoop]: Abstraction has 22809 states and 32774 transitions. [2021-12-22 15:32:11,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:32:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 22809 states and 32774 transitions. [2021-12-22 15:32:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-22 15:32:11,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:11,016 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:32:11,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 15:32:11,017 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)] === [2021-12-22 15:32:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1265945309, now seen corresponding path program 1 times [2021-12-22 15:32:11,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972461365] [2021-12-22 15:32:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:11,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat