./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:00:08,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:00:09,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:00:09,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:00:09,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:00:09,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:00:09,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:00:09,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:00:09,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:00:09,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:00:09,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:00:09,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:00:09,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:00:09,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:00:09,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:00:09,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:00:09,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:00:09,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:00:09,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:00:09,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:00:09,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:00:09,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:00:09,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:00:09,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:00:09,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:00:09,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:00:09,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:00:09,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:00:09,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:00:09,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:00:09,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:00:09,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:00:09,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:00:09,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:00:09,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:00:09,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:00:09,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:00:09,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:00:09,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:00:09,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:00:09,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:00:09,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:00:09,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:00:09,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:00:09,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:00:09,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:00:09,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:00:09,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:00:09,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:00:09,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:00:09,124 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:00:09,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:00:09,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:00:09,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:00:09,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:00:09,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:00:09,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:00:09,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:00:09,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:00:09,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:00:09,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:00:09,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:00:09,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:00:09,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:00:09,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:00:09,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:00:09,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:00:09,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:00:09,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:00:09,129 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:00:09,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:00:09,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:00:09,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2021-12-28 05:00:09,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:00:09,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:00:09,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:00:09,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:00:09,475 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:00:09,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-12-28 05:00:09,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0575269/2bc4d3bdb1f34ba0be66351d9e9d66be/FLAGac8b59eba [2021-12-28 05:00:10,342 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:00:10,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-12-28 05:00:10,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0575269/2bc4d3bdb1f34ba0be66351d9e9d66be/FLAGac8b59eba [2021-12-28 05:00:10,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0575269/2bc4d3bdb1f34ba0be66351d9e9d66be [2021-12-28 05:00:10,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:00:10,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:00:10,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:00:10,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:00:10,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:00:10,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:00:10" (1/1) ... [2021-12-28 05:00:10,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a721e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:10, skipping insertion in model container [2021-12-28 05:00:10,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:00:10" (1/1) ... [2021-12-28 05:00:10,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:00:10,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:00:15,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2021-12-28 05:00:15,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2021-12-28 05:00:15,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2021-12-28 05:00:15,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2021-12-28 05:00:15,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:00:15,494 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:00:15,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2021-12-28 05:00:15,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2021-12-28 05:00:15,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2021-12-28 05:00:15,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2021-12-28 05:00:15,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:00:16,148 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:00:16,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16 WrapperNode [2021-12-28 05:00:16,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:00:16,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:00:16,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:00:16,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:00:16,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,465 INFO L137 Inliner]: procedures = 678, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 10084 [2021-12-28 05:00:16,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:00:16,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:00:16,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:00:16,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:00:16,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:00:16,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:00:16,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:00:16,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:00:16,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (1/1) ... [2021-12-28 05:00:16,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:00:16,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:00:16,972 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) [2021-12-28 05:00:16,989 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 [2021-12-28 05:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2021-12-28 05:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2021-12-28 05:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-28 05:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-28 05:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-28 05:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-28 05:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2021-12-28 05:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2021-12-28 05:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-28 05:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-28 05:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2021-12-28 05:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2021-12-28 05:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 05:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 05:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2021-12-28 05:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2021-12-28 05:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-28 05:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-28 05:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2021-12-28 05:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2021-12-28 05:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-28 05:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-28 05:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 05:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 05:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 05:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 05:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2021-12-28 05:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2021-12-28 05:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 05:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 05:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2021-12-28 05:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2021-12-28 05:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2021-12-28 05:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2021-12-28 05:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2021-12-28 05:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2021-12-28 05:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 05:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 05:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 05:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 05:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 05:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 05:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 05:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 05:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 05:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 05:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 05:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 05:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-28 05:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-28 05:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 05:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 05:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2021-12-28 05:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2021-12-28 05:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2021-12-28 05:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2021-12-28 05:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-28 05:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-28 05:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2021-12-28 05:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2021-12-28 05:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2021-12-28 05:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2021-12-28 05:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2021-12-28 05:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2021-12-28 05:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2021-12-28 05:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2021-12-28 05:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2021-12-28 05:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2021-12-28 05:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 05:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 05:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 05:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 05:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2021-12-28 05:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2021-12-28 05:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 05:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 05:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 05:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 05:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 05:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 05:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-28 05:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-28 05:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 05:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 05:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 05:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 05:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2021-12-28 05:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2021-12-28 05:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:00:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-28 05:00:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-28 05:00:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:00:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:00:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 05:00:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 05:00:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:00:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2021-12-28 05:00:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2021-12-28 05:00:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-28 05:00:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-28 05:00:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 05:00:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:00:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:00:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-28 05:00:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-28 05:00:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:00:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:00:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-28 05:00:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-28 05:00:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2021-12-28 05:00:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2021-12-28 05:00:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2021-12-28 05:00:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2021-12-28 05:00:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-28 05:00:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-28 05:00:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-28 05:00:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-28 05:00:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:00:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:00:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2021-12-28 05:00:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2021-12-28 05:00:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 05:00:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 05:00:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2021-12-28 05:00:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2021-12-28 05:00:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2021-12-28 05:00:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2021-12-28 05:00:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2021-12-28 05:00:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2021-12-28 05:00:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2021-12-28 05:00:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2021-12-28 05:00:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2021-12-28 05:00:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2021-12-28 05:00:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 05:00:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 05:00:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 05:00:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 05:00:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2021-12-28 05:00:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2021-12-28 05:00:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2021-12-28 05:00:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2021-12-28 05:00:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2021-12-28 05:00:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2021-12-28 05:00:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2021-12-28 05:00:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2021-12-28 05:00:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:00:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:00:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-28 05:00:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-28 05:00:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 05:00:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 05:00:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 05:00:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 05:00:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:00:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:00:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:00:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:00:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-28 05:00:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-28 05:00:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:00:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:00:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 05:00:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 05:00:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-28 05:00:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-28 05:00:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2021-12-28 05:00:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2021-12-28 05:00:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-28 05:00:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-28 05:00:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 05:00:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 05:00:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2021-12-28 05:00:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2021-12-28 05:00:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2021-12-28 05:00:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2021-12-28 05:00:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 05:00:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 05:00:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-28 05:00:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-28 05:00:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-28 05:00:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-28 05:00:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2021-12-28 05:00:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2021-12-28 05:00:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2021-12-28 05:00:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2021-12-28 05:00:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-28 05:00:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-28 05:00:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 05:00:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 05:00:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2021-12-28 05:00:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2021-12-28 05:00:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-28 05:00:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-28 05:00:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2021-12-28 05:00:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2021-12-28 05:00:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-28 05:00:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2021-12-28 05:00:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2021-12-28 05:00:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 05:00:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2021-12-28 05:00:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-28 05:00:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-28 05:00:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 05:00:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2021-12-28 05:00:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2021-12-28 05:00:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2021-12-28 05:00:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 05:00:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 05:00:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2021-12-28 05:00:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2021-12-28 05:00:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:00:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:00:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:00:18,155 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:00:18,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:00:18,585 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:00:23,811 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:00:23,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:00:23,836 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 05:00:23,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:00:23 BoogieIcfgContainer [2021-12-28 05:00:23,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:00:23,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:00:23,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:00:23,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:00:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:00:10" (1/3) ... [2021-12-28 05:00:23,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bec0a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:00:23, skipping insertion in model container [2021-12-28 05:00:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:16" (2/3) ... [2021-12-28 05:00:23,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bec0a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:00:23, skipping insertion in model container [2021-12-28 05:00:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:00:23" (3/3) ... [2021-12-28 05:00:23,845 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-12-28 05:00:23,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:00:23,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-28 05:00:23,900 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:00:23,913 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 [2021-12-28 05:00:23,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-28 05:00:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) [2021-12-28 05:00:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-28 05:00:23,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:23,983 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:23,983 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 686473012, now seen corresponding path program 1 times [2021-12-28 05:00:23,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:23,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939682487] [2021-12-28 05:00:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:00:24,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:24,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939682487] [2021-12-28 05:00:24,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939682487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:24,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:24,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:24,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904215795] [2021-12-28 05:00:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:24,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:24,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:24,544 INFO L87 Difference]: Start difference. First operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:24,883 INFO L93 Difference]: Finished difference Result 7449 states and 10625 transitions. [2021-12-28 05:00:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-12-28 05:00:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:24,933 INFO L225 Difference]: With dead ends: 7449 [2021-12-28 05:00:24,934 INFO L226 Difference]: Without dead ends: 3723 [2021-12-28 05:00:24,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:24,971 INFO L933 BasicCegarLoop]: 5246 mSDtfsCounter, 5221 mSDsluCounter, 10475 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 15721 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:24,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5237 Valid, 15721 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:24,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2021-12-28 05:00:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2021-12-28 05:00:25,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2487 states have (on average 1.241254523522316) internal successors, (3087), 2538 states have internal predecessors, (3087), 1074 states have call successors, (1074), 159 states have call predecessors, (1074), 158 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5232 transitions. [2021-12-28 05:00:25,349 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5232 transitions. Word has length 48 [2021-12-28 05:00:25,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:25,349 INFO L470 AbstractCegarLoop]: Abstraction has 3723 states and 5232 transitions. [2021-12-28 05:00:25,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5232 transitions. [2021-12-28 05:00:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-28 05:00:25,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:25,352 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:25,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:00:25,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:25,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1093032917, now seen corresponding path program 1 times [2021-12-28 05:00:25,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:25,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294041996] [2021-12-28 05:00:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:25,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:00:25,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:25,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294041996] [2021-12-28 05:00:25,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294041996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:25,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:25,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:25,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789881980] [2021-12-28 05:00:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:25,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:25,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:25,541 INFO L87 Difference]: Start difference. First operand 3723 states and 5232 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:00:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:25,707 INFO L93 Difference]: Finished difference Result 3729 states and 5237 transitions. [2021-12-28 05:00:25,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:25,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-12-28 05:00:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:25,726 INFO L225 Difference]: With dead ends: 3729 [2021-12-28 05:00:25,726 INFO L226 Difference]: Without dead ends: 3727 [2021-12-28 05:00:25,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:25,730 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:25,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5211 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:25,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2021-12-28 05:00:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2021-12-28 05:00:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 2490 states have (on average 1.2409638554216869) internal successors, (3090), 2541 states have internal predecessors, (3090), 1074 states have call successors, (1074), 160 states have call predecessors, (1074), 159 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5235 transitions. [2021-12-28 05:00:25,881 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5235 transitions. Word has length 53 [2021-12-28 05:00:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:25,881 INFO L470 AbstractCegarLoop]: Abstraction has 3727 states and 5235 transitions. [2021-12-28 05:00:25,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:00:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5235 transitions. [2021-12-28 05:00:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 05:00:25,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:25,883 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:25,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:00:25,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1681086804, now seen corresponding path program 1 times [2021-12-28 05:00:25,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:25,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084480734] [2021-12-28 05:00:25,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:25,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-28 05:00:26,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:26,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084480734] [2021-12-28 05:00:26,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084480734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:26,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:26,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:26,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940072381] [2021-12-28 05:00:26,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:26,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:26,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:26,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:26,160 INFO L87 Difference]: Start difference. First operand 3727 states and 5235 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:00:26,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:26,308 INFO L93 Difference]: Finished difference Result 3733 states and 5240 transitions. [2021-12-28 05:00:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:26,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-12-28 05:00:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:26,325 INFO L225 Difference]: With dead ends: 3733 [2021-12-28 05:00:26,325 INFO L226 Difference]: Without dead ends: 3731 [2021-12-28 05:00:26,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:26,329 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:26,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5210 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-12-28 05:00:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2021-12-28 05:00:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 2493 states have (on average 1.2406738868832732) internal successors, (3093), 2544 states have internal predecessors, (3093), 1074 states have call successors, (1074), 161 states have call predecessors, (1074), 160 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5238 transitions. [2021-12-28 05:00:26,465 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5238 transitions. Word has length 58 [2021-12-28 05:00:26,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:26,466 INFO L470 AbstractCegarLoop]: Abstraction has 3731 states and 5238 transitions. [2021-12-28 05:00:26,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:00:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5238 transitions. [2021-12-28 05:00:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-28 05:00:26,467 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:26,467 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:26,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:00:26,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1370918283, now seen corresponding path program 1 times [2021-12-28 05:00:26,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:26,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419624460] [2021-12-28 05:00:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:26,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-28 05:00:26,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:26,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419624460] [2021-12-28 05:00:26,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419624460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:26,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:26,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:26,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128251208] [2021-12-28 05:00:26,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:26,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:26,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:26,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:26,666 INFO L87 Difference]: Start difference. First operand 3731 states and 5238 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:00:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:26,815 INFO L93 Difference]: Finished difference Result 3737 states and 5243 transitions. [2021-12-28 05:00:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2021-12-28 05:00:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:26,833 INFO L225 Difference]: With dead ends: 3737 [2021-12-28 05:00:26,833 INFO L226 Difference]: Without dead ends: 3735 [2021-12-28 05:00:26,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:26,837 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5209 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:26,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5209 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2021-12-28 05:00:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3735. [2021-12-28 05:00:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2496 states have (on average 1.2403846153846154) internal successors, (3096), 2547 states have internal predecessors, (3096), 1074 states have call successors, (1074), 162 states have call predecessors, (1074), 161 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:27,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5241 transitions. [2021-12-28 05:00:27,019 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5241 transitions. Word has length 63 [2021-12-28 05:00:27,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:27,019 INFO L470 AbstractCegarLoop]: Abstraction has 3735 states and 5241 transitions. [2021-12-28 05:00:27,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:00:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5241 transitions. [2021-12-28 05:00:27,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 05:00:27,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:27,021 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:27,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 05:00:27,021 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:27,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2014018420, now seen corresponding path program 1 times [2021-12-28 05:00:27,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:27,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213736245] [2021-12-28 05:00:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:27,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-28 05:00:27,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:27,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213736245] [2021-12-28 05:00:27,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213736245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:27,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:27,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:27,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639340216] [2021-12-28 05:00:27,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:27,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:27,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:27,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:27,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:27,203 INFO L87 Difference]: Start difference. First operand 3735 states and 5241 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 05:00:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:27,344 INFO L93 Difference]: Finished difference Result 3741 states and 5246 transitions. [2021-12-28 05:00:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:27,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2021-12-28 05:00:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:27,362 INFO L225 Difference]: With dead ends: 3741 [2021-12-28 05:00:27,362 INFO L226 Difference]: Without dead ends: 3739 [2021-12-28 05:00:27,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:27,365 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:27,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5208 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2021-12-28 05:00:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2021-12-28 05:00:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 2499 states have (on average 1.240096038415366) internal successors, (3099), 2550 states have internal predecessors, (3099), 1074 states have call successors, (1074), 163 states have call predecessors, (1074), 162 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5244 transitions. [2021-12-28 05:00:27,495 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5244 transitions. Word has length 68 [2021-12-28 05:00:27,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:27,496 INFO L470 AbstractCegarLoop]: Abstraction has 3739 states and 5244 transitions. [2021-12-28 05:00:27,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 05:00:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5244 transitions. [2021-12-28 05:00:27,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-28 05:00:27,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:27,498 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:27,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 05:00:27,498 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash 687174958, now seen corresponding path program 1 times [2021-12-28 05:00:27,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:27,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522995238] [2021-12-28 05:00:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:27,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 05:00:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-28 05:00:27,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:27,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522995238] [2021-12-28 05:00:27,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522995238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:27,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:27,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:27,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205085503] [2021-12-28 05:00:27,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:27,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:27,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:27,703 INFO L87 Difference]: Start difference. First operand 3739 states and 5244 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (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) [2021-12-28 05:00:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:27,895 INFO L93 Difference]: Finished difference Result 3745 states and 5249 transitions. [2021-12-28 05:00:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (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 86 [2021-12-28 05:00:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:27,913 INFO L225 Difference]: With dead ends: 3745 [2021-12-28 05:00:27,913 INFO L226 Difference]: Without dead ends: 3743 [2021-12-28 05:00:27,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:27,917 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5187 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:27,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5197 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3743 states. [2021-12-28 05:00:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3743 to 3743. [2021-12-28 05:00:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 2502 states have (on average 1.2398081534772183) internal successors, (3102), 2553 states have internal predecessors, (3102), 1074 states have call successors, (1074), 164 states have call predecessors, (1074), 163 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5247 transitions. [2021-12-28 05:00:28,084 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5247 transitions. Word has length 86 [2021-12-28 05:00:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:28,085 INFO L470 AbstractCegarLoop]: Abstraction has 3743 states and 5247 transitions. [2021-12-28 05:00:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (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) [2021-12-28 05:00:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5247 transitions. [2021-12-28 05:00:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-28 05:00:28,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:28,087 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:28,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 05:00:28,088 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1117449935, now seen corresponding path program 1 times [2021-12-28 05:00:28,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:28,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817661262] [2021-12-28 05:00:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:28,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 05:00:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-28 05:00:28,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:28,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817661262] [2021-12-28 05:00:28,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817661262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:28,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:28,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:28,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404772566] [2021-12-28 05:00:28,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:28,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:28,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:28,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:28,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:28,309 INFO L87 Difference]: Start difference. First operand 3743 states and 5247 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:28,487 INFO L93 Difference]: Finished difference Result 3749 states and 5252 transitions. [2021-12-28 05:00:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2021-12-28 05:00:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:28,513 INFO L225 Difference]: With dead ends: 3749 [2021-12-28 05:00:28,513 INFO L226 Difference]: Without dead ends: 3747 [2021-12-28 05:00:28,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:28,518 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5187 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:28,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5196 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:28,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2021-12-28 05:00:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747. [2021-12-28 05:00:28,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3747 states, 2505 states have (on average 1.2395209580838322) internal successors, (3105), 2556 states have internal predecessors, (3105), 1074 states have call successors, (1074), 165 states have call predecessors, (1074), 164 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5250 transitions. [2021-12-28 05:00:28,718 INFO L78 Accepts]: Start accepts. Automaton has 3747 states and 5250 transitions. Word has length 91 [2021-12-28 05:00:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:28,720 INFO L470 AbstractCegarLoop]: Abstraction has 3747 states and 5250 transitions. [2021-12-28 05:00:28,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3747 states and 5250 transitions. [2021-12-28 05:00:28,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-28 05:00:28,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:28,726 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:28,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 05:00:28,726 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2069182389, now seen corresponding path program 1 times [2021-12-28 05:00:28,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:28,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104133044] [2021-12-28 05:00:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:28,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 05:00:28,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:28,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104133044] [2021-12-28 05:00:28,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104133044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:28,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:28,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:28,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722440229] [2021-12-28 05:00:28,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:28,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:28,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:28,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:28,952 INFO L87 Difference]: Start difference. First operand 3747 states and 5250 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:29,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:29,173 INFO L93 Difference]: Finished difference Result 3753 states and 5255 transitions. [2021-12-28 05:00:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:29,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2021-12-28 05:00:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:29,193 INFO L225 Difference]: With dead ends: 3753 [2021-12-28 05:00:29,193 INFO L226 Difference]: Without dead ends: 3751 [2021-12-28 05:00:29,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:29,197 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:29,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5205 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:29,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2021-12-28 05:00:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 3751. [2021-12-28 05:00:29,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3751 states, 2508 states have (on average 1.2392344497607655) internal successors, (3108), 2559 states have internal predecessors, (3108), 1074 states have call successors, (1074), 166 states have call predecessors, (1074), 165 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-12-28 05:00:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3751 states to 3751 states and 5253 transitions. [2021-12-28 05:00:29,382 INFO L78 Accepts]: Start accepts. Automaton has 3751 states and 5253 transitions. Word has length 83 [2021-12-28 05:00:29,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:29,383 INFO L470 AbstractCegarLoop]: Abstraction has 3751 states and 5253 transitions. [2021-12-28 05:00:29,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3751 states and 5253 transitions. [2021-12-28 05:00:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-28 05:00:29,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:29,384 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:29,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 05:00:29,385 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1052923828, now seen corresponding path program 1 times [2021-12-28 05:00:29,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:29,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475791066] [2021-12-28 05:00:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:29,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 05:00:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-28 05:00:29,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:29,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475791066] [2021-12-28 05:00:29,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475791066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:29,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:29,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:29,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622439822] [2021-12-28 05:00:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:29,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:29,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:29,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:29,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:29,566 INFO L87 Difference]: Start difference. First operand 3751 states and 5253 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:29,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:29,795 INFO L93 Difference]: Finished difference Result 3928 states and 5481 transitions. [2021-12-28 05:00:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2021-12-28 05:00:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:29,813 INFO L225 Difference]: With dead ends: 3928 [2021-12-28 05:00:29,813 INFO L226 Difference]: Without dead ends: 3926 [2021-12-28 05:00:29,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:29,815 INFO L933 BasicCegarLoop]: 5380 mSDtfsCounter, 5106 mSDsluCounter, 11049 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 16429 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:29,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5113 Valid, 16429 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2021-12-28 05:00:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3924. [2021-12-28 05:00:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 2632 states have (on average 1.2420212765957446) internal successors, (3269), 2684 states have internal predecessors, (3269), 1106 states have call successors, (1106), 183 states have call predecessors, (1106), 182 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5478 transitions. [2021-12-28 05:00:29,991 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5478 transitions. Word has length 88 [2021-12-28 05:00:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:29,992 INFO L470 AbstractCegarLoop]: Abstraction has 3924 states and 5478 transitions. [2021-12-28 05:00:29,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5478 transitions. [2021-12-28 05:00:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 05:00:29,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:29,994 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:29,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 05:00:29,994 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash -212461141, now seen corresponding path program 1 times [2021-12-28 05:00:29,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:29,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746743296] [2021-12-28 05:00:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:29,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 05:00:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:00:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-28 05:00:30,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:30,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746743296] [2021-12-28 05:00:30,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746743296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:30,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:30,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:30,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061356751] [2021-12-28 05:00:30,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:30,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:30,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:30,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:30,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:30,185 INFO L87 Difference]: Start difference. First operand 3924 states and 5478 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 05:00:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:30,331 INFO L93 Difference]: Finished difference Result 3930 states and 5483 transitions. [2021-12-28 05:00:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:30,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2021-12-28 05:00:30,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:30,345 INFO L225 Difference]: With dead ends: 3930 [2021-12-28 05:00:30,346 INFO L226 Difference]: Without dead ends: 3928 [2021-12-28 05:00:30,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:30,349 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:30,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5203 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2021-12-28 05:00:30,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3928. [2021-12-28 05:00:30,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 2635 states have (on average 1.2417457305502846) internal successors, (3272), 2687 states have internal predecessors, (3272), 1106 states have call successors, (1106), 184 states have call predecessors, (1106), 183 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 5481 transitions. [2021-12-28 05:00:30,494 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 5481 transitions. Word has length 93 [2021-12-28 05:00:30,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:30,494 INFO L470 AbstractCegarLoop]: Abstraction has 3928 states and 5481 transitions. [2021-12-28 05:00:30,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 05:00:30,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 5481 transitions. [2021-12-28 05:00:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 05:00:30,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:30,497 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:30,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 05:00:30,497 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:30,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:30,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1745613583, now seen corresponding path program 1 times [2021-12-28 05:00:30,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:30,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602792071] [2021-12-28 05:00:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:30,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 05:00:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:00:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:00:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-28 05:00:30,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:30,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602792071] [2021-12-28 05:00:30,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602792071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:30,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:30,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:30,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74710586] [2021-12-28 05:00:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:30,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:30,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:30,693 INFO L87 Difference]: Start difference. First operand 3928 states and 5481 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:00:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:30,852 INFO L93 Difference]: Finished difference Result 3934 states and 5486 transitions. [2021-12-28 05:00:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:30,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2021-12-28 05:00:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:30,866 INFO L225 Difference]: With dead ends: 3934 [2021-12-28 05:00:30,866 INFO L226 Difference]: Without dead ends: 3932 [2021-12-28 05:00:30,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:30,869 INFO L933 BasicCegarLoop]: 5229 mSDtfsCounter, 5187 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5192 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:30,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5192 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2021-12-28 05:00:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3932. [2021-12-28 05:00:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 2638 states have (on average 1.2414708112206216) internal successors, (3275), 2690 states have internal predecessors, (3275), 1106 states have call successors, (1106), 185 states have call predecessors, (1106), 184 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:31,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5484 transitions. [2021-12-28 05:00:31,007 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5484 transitions. Word has length 111 [2021-12-28 05:00:31,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:31,008 INFO L470 AbstractCegarLoop]: Abstraction has 3932 states and 5484 transitions. [2021-12-28 05:00:31,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:00:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5484 transitions. [2021-12-28 05:00:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-28 05:00:31,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:31,010 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:31,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 05:00:31,010 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:31,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:31,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1335173313, now seen corresponding path program 1 times [2021-12-28 05:00:31,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:31,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088905120] [2021-12-28 05:00:31,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:31,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 05:00:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 05:00:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:00:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-28 05:00:31,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:31,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088905120] [2021-12-28 05:00:31,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088905120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:31,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:31,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:00:31,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996593113] [2021-12-28 05:00:31,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:31,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:00:31,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:31,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:00:31,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:00:31,306 INFO L87 Difference]: Start difference. First operand 3932 states and 5484 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-28 05:00:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:37,721 INFO L93 Difference]: Finished difference Result 4190 states and 5889 transitions. [2021-12-28 05:00:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:00:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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 131 [2021-12-28 05:00:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:37,751 INFO L225 Difference]: With dead ends: 4190 [2021-12-28 05:00:37,752 INFO L226 Difference]: Without dead ends: 4188 [2021-12-28 05:00:37,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 05:00:37,754 INFO L933 BasicCegarLoop]: 5072 mSDtfsCounter, 5302 mSDsluCounter, 8686 mSDsCounter, 0 mSdLazyCounter, 5904 mSolverCounterSat, 2131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6021 SdHoareTripleChecker+Valid, 13758 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2131 IncrementalHoareTripleChecker+Valid, 5904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:37,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6021 Valid, 13758 Invalid, 8035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2131 Valid, 5904 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-12-28 05:00:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2021-12-28 05:00:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 3930. [2021-12-28 05:00:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 2637 states have (on average 1.2411831626848693) internal successors, (3273), 2688 states have internal predecessors, (3273), 1106 states have call successors, (1106), 185 states have call predecessors, (1106), 184 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 5482 transitions. [2021-12-28 05:00:37,915 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 5482 transitions. Word has length 131 [2021-12-28 05:00:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:37,916 INFO L470 AbstractCegarLoop]: Abstraction has 3930 states and 5482 transitions. [2021-12-28 05:00:37,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-28 05:00:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 5482 transitions. [2021-12-28 05:00:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-28 05:00:37,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:37,917 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:37,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 05:00:37,918 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1660624117, now seen corresponding path program 1 times [2021-12-28 05:00:37,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:37,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725365180] [2021-12-28 05:00:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:37,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 05:00:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:00:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:00:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 05:00:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-28 05:00:38,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:38,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725365180] [2021-12-28 05:00:38,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725365180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:38,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:38,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:38,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145246904] [2021-12-28 05:00:38,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:38,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:38,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:38,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:38,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:38,106 INFO L87 Difference]: Start difference. First operand 3930 states and 5482 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:00:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:38,265 INFO L93 Difference]: Finished difference Result 3936 states and 5487 transitions. [2021-12-28 05:00:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2021-12-28 05:00:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:38,279 INFO L225 Difference]: With dead ends: 3936 [2021-12-28 05:00:38,279 INFO L226 Difference]: Without dead ends: 3934 [2021-12-28 05:00:38,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:38,282 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 5195 mSDsluCounter, 10431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5199 SdHoareTripleChecker+Valid, 15658 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:38,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5199 Valid, 15658 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:38,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2021-12-28 05:00:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3934. [2021-12-28 05:00:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 2640 states have (on average 1.240909090909091) internal successors, (3276), 2691 states have internal predecessors, (3276), 1106 states have call successors, (1106), 186 states have call predecessors, (1106), 185 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5485 transitions. [2021-12-28 05:00:38,504 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5485 transitions. Word has length 103 [2021-12-28 05:00:38,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:38,504 INFO L470 AbstractCegarLoop]: Abstraction has 3934 states and 5485 transitions. [2021-12-28 05:00:38,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:00:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5485 transitions. [2021-12-28 05:00:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 05:00:38,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:38,506 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:38,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 05:00:38,506 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1093611823, now seen corresponding path program 1 times [2021-12-28 05:00:38,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:38,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629386912] [2021-12-28 05:00:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:38,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 05:00:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:00:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:00:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 05:00:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 05:00:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-28 05:00:38,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:38,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629386912] [2021-12-28 05:00:38,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629386912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:38,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:38,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:38,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100980601] [2021-12-28 05:00:38,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:38,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:38,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:38,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:38,718 INFO L87 Difference]: Start difference. First operand 3934 states and 5485 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:38,890 INFO L93 Difference]: Finished difference Result 3940 states and 5490 transitions. [2021-12-28 05:00:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:38,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-12-28 05:00:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:38,902 INFO L225 Difference]: With dead ends: 3940 [2021-12-28 05:00:38,902 INFO L226 Difference]: Without dead ends: 3938 [2021-12-28 05:00:38,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:38,904 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 5185 mSDsluCounter, 10431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5188 SdHoareTripleChecker+Valid, 15658 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:38,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5188 Valid, 15658 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2021-12-28 05:00:39,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2021-12-28 05:00:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 2643 states have (on average 1.2406356413166857) internal successors, (3279), 2694 states have internal predecessors, (3279), 1106 states have call successors, (1106), 187 states have call predecessors, (1106), 186 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:39,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5488 transitions. [2021-12-28 05:00:39,060 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5488 transitions. Word has length 121 [2021-12-28 05:00:39,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:39,061 INFO L470 AbstractCegarLoop]: Abstraction has 3938 states and 5488 transitions. [2021-12-28 05:00:39,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:39,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5488 transitions. [2021-12-28 05:00:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 05:00:39,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:39,063 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:39,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 05:00:39,064 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:39,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash 230761579, now seen corresponding path program 1 times [2021-12-28 05:00:39,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:39,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758220282] [2021-12-28 05:00:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:39,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 05:00:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:00:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:00:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 05:00:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 05:00:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-28 05:00:39,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:39,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758220282] [2021-12-28 05:00:39,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758220282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:39,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:39,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:39,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538623303] [2021-12-28 05:00:39,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:39,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:39,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:39,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:39,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:39,282 INFO L87 Difference]: Start difference. First operand 3938 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:39,448 INFO L93 Difference]: Finished difference Result 3944 states and 5493 transitions. [2021-12-28 05:00:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2021-12-28 05:00:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:39,462 INFO L225 Difference]: With dead ends: 3944 [2021-12-28 05:00:39,462 INFO L226 Difference]: Without dead ends: 3942 [2021-12-28 05:00:39,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:39,466 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 5195 mSDsluCounter, 10431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 15658 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:39,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5197 Valid, 15658 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2021-12-28 05:00:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2021-12-28 05:00:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 2646 states have (on average 1.2403628117913832) internal successors, (3282), 2697 states have internal predecessors, (3282), 1106 states have call successors, (1106), 188 states have call predecessors, (1106), 187 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5491 transitions. [2021-12-28 05:00:39,636 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5491 transitions. Word has length 113 [2021-12-28 05:00:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:39,636 INFO L470 AbstractCegarLoop]: Abstraction has 3942 states and 5491 transitions. [2021-12-28 05:00:39,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5491 transitions. [2021-12-28 05:00:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-28 05:00:39,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:39,638 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:39,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 05:00:39,639 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:39,639 INFO L85 PathProgramCache]: Analyzing trace with hash -671192911, now seen corresponding path program 1 times [2021-12-28 05:00:39,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:39,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637388799] [2021-12-28 05:00:39,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:39,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 05:00:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:00:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:00:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 05:00:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 05:00:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:00:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 05:00:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-28 05:00:39,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:39,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637388799] [2021-12-28 05:00:39,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637388799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:39,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:39,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:39,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909559380] [2021-12-28 05:00:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:39,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:39,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:39,864 INFO L87 Difference]: Start difference. First operand 3942 states and 5491 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:00:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:40,116 INFO L93 Difference]: Finished difference Result 3948 states and 5496 transitions. [2021-12-28 05:00:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:40,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131 [2021-12-28 05:00:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:40,135 INFO L225 Difference]: With dead ends: 3948 [2021-12-28 05:00:40,135 INFO L226 Difference]: Without dead ends: 3944 [2021-12-28 05:00:40,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:40,140 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 5185 mSDsluCounter, 10431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5186 SdHoareTripleChecker+Valid, 15658 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:40,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5186 Valid, 15658 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:40,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2021-12-28 05:00:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3944. [2021-12-28 05:00:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 2648 states have (on average 1.2398036253776434) internal successors, (3283), 2698 states have internal predecessors, (3283), 1106 states have call successors, (1106), 189 states have call predecessors, (1106), 187 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2021-12-28 05:00:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5492 transitions. [2021-12-28 05:00:40,354 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5492 transitions. Word has length 131 [2021-12-28 05:00:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:40,354 INFO L470 AbstractCegarLoop]: Abstraction has 3944 states and 5492 transitions. [2021-12-28 05:00:40,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:00:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5492 transitions. [2021-12-28 05:00:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 05:00:40,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:40,357 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:40,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 05:00:40,357 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:40,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:40,358 INFO L85 PathProgramCache]: Analyzing trace with hash -854270517, now seen corresponding path program 1 times [2021-12-28 05:00:40,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:40,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417050474] [2021-12-28 05:00:40,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:40,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 05:00:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 05:00:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 05:00:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:00:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 05:00:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 05:00:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:00:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:00:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 05:00:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 05:00:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 05:00:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 05:00:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-28 05:00:40,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:40,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417050474] [2021-12-28 05:00:40,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417050474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:40,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:40,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:40,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724879355] [2021-12-28 05:00:40,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:40,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:40,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:40,571 INFO L87 Difference]: Start difference. First operand 3944 states and 5492 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:00:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:40,893 INFO L93 Difference]: Finished difference Result 7860 states and 10945 transitions. [2021-12-28 05:00:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:00:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2021-12-28 05:00:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:40,930 INFO L225 Difference]: With dead ends: 7860 [2021-12-28 05:00:40,930 INFO L226 Difference]: Without dead ends: 7760 [2021-12-28 05:00:40,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:40,939 INFO L933 BasicCegarLoop]: 6566 mSDtfsCounter, 5194 mSDsluCounter, 18293 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5194 SdHoareTripleChecker+Valid, 24859 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:40,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5194 Valid, 24859 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2021-12-28 05:00:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7755. [2021-12-28 05:00:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2427091327705295) internal successors, (6477), 5312 states have internal predecessors, (6477), 2182 states have call successors, (2182), 361 states have call predecessors, (2182), 358 states have return successors, (2178), 2156 states have call predecessors, (2178), 2178 states have call successors, (2178) [2021-12-28 05:00:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10837 transitions. [2021-12-28 05:00:41,357 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10837 transitions. Word has length 123 [2021-12-28 05:00:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:41,358 INFO L470 AbstractCegarLoop]: Abstraction has 7755 states and 10837 transitions. [2021-12-28 05:00:41,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:00:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10837 transitions. [2021-12-28 05:00:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-28 05:00:41,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:41,364 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:41,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 05:00:41,364 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:41,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:41,364 INFO L85 PathProgramCache]: Analyzing trace with hash -309184360, now seen corresponding path program 1 times [2021-12-28 05:00:41,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:41,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153842162] [2021-12-28 05:00:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:41,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 05:00:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 05:00:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:00:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:00:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:00:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:00:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:00:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:00:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:00:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 05:00:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:00:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:00:41,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:41,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153842162] [2021-12-28 05:00:41,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153842162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:41,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:41,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:41,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673130936] [2021-12-28 05:00:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:41,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:41,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:41,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:41,672 INFO L87 Difference]: Start difference. First operand 7755 states and 10837 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-28 05:00:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:48,437 INFO L93 Difference]: Finished difference Result 16231 states and 23172 transitions. [2021-12-28 05:00:48,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:48,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 211 [2021-12-28 05:00:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:48,475 INFO L225 Difference]: With dead ends: 16231 [2021-12-28 05:00:48,475 INFO L226 Difference]: Without dead ends: 8495 [2021-12-28 05:00:48,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:00:48,511 INFO L933 BasicCegarLoop]: 4688 mSDtfsCounter, 3011 mSDsluCounter, 5404 mSDsCounter, 0 mSdLazyCounter, 5664 mSolverCounterSat, 2999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 10092 SdHoareTripleChecker+Invalid, 8663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2999 IncrementalHoareTripleChecker+Valid, 5664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:48,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3291 Valid, 10092 Invalid, 8663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2999 Valid, 5664 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-12-28 05:00:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8495 states. [2021-12-28 05:00:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8495 to 7759. [2021-12-28 05:00:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7759 states, 5216 states have (on average 1.2425230061349692) internal successors, (6481), 5316 states have internal predecessors, (6481), 2182 states have call successors, (2182), 361 states have call predecessors, (2182), 358 states have return successors, (2178), 2156 states have call predecessors, (2178), 2178 states have call successors, (2178) [2021-12-28 05:00:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 10841 transitions. [2021-12-28 05:00:48,921 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 10841 transitions. Word has length 211 [2021-12-28 05:00:48,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:48,922 INFO L470 AbstractCegarLoop]: Abstraction has 7759 states and 10841 transitions. [2021-12-28 05:00:48,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-28 05:00:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 10841 transitions. [2021-12-28 05:00:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-28 05:00:48,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:48,927 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:48,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 05:00:48,927 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:48,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:48,928 INFO L85 PathProgramCache]: Analyzing trace with hash -54111651, now seen corresponding path program 1 times [2021-12-28 05:00:48,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:48,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791311733] [2021-12-28 05:00:48,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:48,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 05:00:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 05:00:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:00:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:00:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:00:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:00:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:00:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:00:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:00:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 05:00:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:00:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:00:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 05:00:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:00:49,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:49,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791311733] [2021-12-28 05:00:49,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791311733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:49,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:49,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287210635] [2021-12-28 05:00:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:49,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:49,291 INFO L87 Difference]: Start difference. First operand 7759 states and 10841 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-28 05:00:55,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:55,777 INFO L93 Difference]: Finished difference Result 16183 states and 22998 transitions. [2021-12-28 05:00:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 224 [2021-12-28 05:00:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:55,829 INFO L225 Difference]: With dead ends: 16183 [2021-12-28 05:00:55,829 INFO L226 Difference]: Without dead ends: 8443 [2021-12-28 05:00:55,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:00:55,859 INFO L933 BasicCegarLoop]: 4689 mSDtfsCounter, 2981 mSDsluCounter, 5404 mSDsCounter, 0 mSdLazyCounter, 5656 mSolverCounterSat, 2968 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 10093 SdHoareTripleChecker+Invalid, 8624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2968 IncrementalHoareTripleChecker+Valid, 5656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:55,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3261 Valid, 10093 Invalid, 8624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2968 Valid, 5656 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-28 05:00:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8443 states. [2021-12-28 05:00:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8443 to 7763. [2021-12-28 05:00:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7763 states, 5220 states have (on average 1.2423371647509578) internal successors, (6485), 5320 states have internal predecessors, (6485), 2182 states have call successors, (2182), 361 states have call predecessors, (2182), 358 states have return successors, (2178), 2156 states have call predecessors, (2178), 2178 states have call successors, (2178) [2021-12-28 05:00:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7763 states to 7763 states and 10845 transitions. [2021-12-28 05:00:56,352 INFO L78 Accepts]: Start accepts. Automaton has 7763 states and 10845 transitions. Word has length 224 [2021-12-28 05:00:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:56,353 INFO L470 AbstractCegarLoop]: Abstraction has 7763 states and 10845 transitions. [2021-12-28 05:00:56,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-28 05:00:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7763 states and 10845 transitions. [2021-12-28 05:00:56,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-28 05:00:56,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:56,358 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:56,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 05:00:56,358 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-28 05:00:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:56,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1859549985, now seen corresponding path program 1 times [2021-12-28 05:00:56,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:56,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175649280] [2021-12-28 05:00:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:56,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 05:00:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 05:00:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 05:00:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 05:00:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 05:00:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 05:00:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:00:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:00:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:00:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:00:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:00:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:00:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:00:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 05:00:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:00:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:00:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 05:00:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:00:56,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:56,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175649280] [2021-12-28 05:00:56,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175649280] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:56,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:56,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 05:00:56,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601537269] [2021-12-28 05:00:56,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:56,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 05:00:56,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 05:00:56,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:00:56,677 INFO L87 Difference]: Start difference. First operand 7763 states and 10845 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28)