./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-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.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 ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:42:41,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:42:41,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:42:42,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:42:42,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:42:42,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:42:42,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:42:42,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:42:42,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:42:42,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:42:42,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:42:42,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:42:42,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:42:42,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:42:42,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:42:42,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:42:42,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:42:42,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:42:42,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:42:42,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:42:42,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:42:42,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:42:42,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:42:42,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:42:42,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:42:42,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:42:42,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:42:42,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:42:42,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:42:42,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:42:42,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:42:42,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:42:42,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:42:42,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:42:42,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:42:42,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:42:42,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:42:42,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:42:42,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:42:42,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:42:42,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:42:42,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:42:42,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:42:42,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:42:42,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:42:42,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:42:42,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:42:42,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:42:42,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:42:42,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:42:42,153 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:42:42,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:42:42,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:42:42,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:42:42,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:42:42,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:42:42,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:42:42,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:42:42,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:42:42,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:42:42,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:42:42,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:42:42,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:42:42,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:42:42,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:42:42,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:42:42,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:42:42,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:42:42,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:42:42,159 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:42:42,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:42:42,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:42:42,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:42:42,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b [2021-12-22 15:42:42,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:42:42,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:42:42,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:42:42,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:42:42,412 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:42:42,413 INFO L432 ainManager$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-qlogic-qlge-qlge.cil.i [2021-12-22 15:42:42,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed25216f/516ead46770d43d3bbfc3e1dc29a0f75/FLAG64db6bf99 [2021-12-22 15:42:43,446 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:42:43,447 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-qlogic-qlge-qlge.cil.i [2021-12-22 15:42:43,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed25216f/516ead46770d43d3bbfc3e1dc29a0f75/FLAG64db6bf99 [2021-12-22 15:42:43,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed25216f/516ead46770d43d3bbfc3e1dc29a0f75 [2021-12-22 15:42:43,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:42:43,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:42:43,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:42:43,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:42:43,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:42:43,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:43" (1/1) ... [2021-12-22 15:42:43,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11453ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:43, skipping insertion in model container [2021-12-22 15:42:43,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:43" (1/1) ... [2021-12-22 15:42:43,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:42:44,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:42:51,703 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-qlogic-qlge-qlge.cil.i[647538,647551] [2021-12-22 15:42:51,706 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-qlogic-qlge-qlge.cil.i[647707,647720] [2021-12-22 15:42:51,706 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-qlogic-qlge-qlge.cil.i[647874,647887] [2021-12-22 15:42:51,707 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-qlogic-qlge-qlge.cil.i[648042,648055] [2021-12-22 15:42:51,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:42:51,846 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:42:52,417 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-qlogic-qlge-qlge.cil.i[647538,647551] [2021-12-22 15:42:52,419 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-qlogic-qlge-qlge.cil.i[647707,647720] [2021-12-22 15:42:52,420 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-qlogic-qlge-qlge.cil.i[647874,647887] [2021-12-22 15:42:52,420 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-qlogic-qlge-qlge.cil.i[648042,648055] [2021-12-22 15:42:52,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:42:52,838 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:42:52,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52 WrapperNode [2021-12-22 15:42:52,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:42:52,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:42:52,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:42:52,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:42:52,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,429 INFO L137 Inliner]: procedures = 794, calls = 7637, calls flagged for inlining = 373, calls inlined = 338, statements flattened = 15779 [2021-12-22 15:42:53,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:42:53,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:42:53,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:42:53,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:42:53,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:53,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:54,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:54,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:42:54,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:42:54,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:42:54,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:42:54,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:54,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:42:54,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:42:54,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:42:54,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:42:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-22 15:42:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-22 15:42:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-22 15:42:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:42:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:42:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-12-22 15:42:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-12-22 15:42:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-12-22 15:42:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-12-22 15:42:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-12-22 15:42:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-12-22 15:42:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-12-22 15:42:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-12-22 15:42:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-22 15:42:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-22 15:42:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-22 15:42:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-22 15:42:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:42:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:42:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:42:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:42:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 15:42:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 15:42:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-12-22 15:42:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-12-22 15:42:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-12-22 15:42:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-12-22 15:42:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-22 15:42:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-22 15:42:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:42:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:42:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:42:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:42:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-12-22 15:42:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-12-22 15:42:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-12-22 15:42:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-12-22 15:42:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:42:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:42:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 15:42:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 15:42:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-12-22 15:42:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-12-22 15:42:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-12-22 15:42:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-12-22 15:42:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-12-22 15:42:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-12-22 15:42:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-12-22 15:42:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-12-22 15:42:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-22 15:42:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-22 15:42:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-12-22 15:42:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-12-22 15:42:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-12-22 15:42:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-12-22 15:42:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:42:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:42:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-12-22 15:42:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-12-22 15:42:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-22 15:42:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-22 15:42:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:42:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:42:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-12-22 15:42:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-12-22 15:42:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-12-22 15:42:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-12-22 15:42:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-12-22 15:42:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-12-22 15:42:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:42:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:42:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:42:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-22 15:42:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-22 15:42:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-12-22 15:42:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-12-22 15:42:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:42:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:42:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-12-22 15:42:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-12-22 15:42:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-22 15:42:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-22 15:42:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-12-22 15:42:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-12-22 15:42:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-12-22 15:42:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-12-22 15:42:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:42:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:42:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:42:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:42:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-12-22 15:42:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-12-22 15:42:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:42:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:42:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:42:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-12-22 15:42:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-12-22 15:42:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-22 15:42:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-22 15:42:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:42:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:42:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:42:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:42:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:42:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:42:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:42:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-12-22 15:42:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-12-22 15:42:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-12-22 15:42:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-12-22 15:42:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:42:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:42:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-12-22 15:42:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-12-22 15:42:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 15:42:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 15:42:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-12-22 15:42:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-12-22 15:42:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:42:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:42:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:42:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:42:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-22 15:42:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-22 15:42:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-12-22 15:42:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-12-22 15:42:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:42:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:42:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-12-22 15:42:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-12-22 15:42:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:42:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:42:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-12-22 15:42:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-12-22 15:42:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-12-22 15:42:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-12-22 15:42:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:42:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:42:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:42:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-12-22 15:42:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-12-22 15:42:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:42:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:42:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-22 15:42:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-22 15:42:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:42:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:42:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-22 15:42:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-12-22 15:42:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-12-22 15:42:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:42:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:42:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-22 15:42:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:42:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:42:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-12-22 15:42:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-22 15:42:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:42:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:42:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-12-22 15:42:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-12-22 15:42:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-22 15:42:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-22 15:42:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-22 15:42:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-22 15:42:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-12-22 15:42:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-12-22 15:42:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-22 15:42:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-12-22 15:42:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-12-22 15:42:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 15:42:54,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-22 15:42:54,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-22 15:42:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-22 15:42:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-22 15:42:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-12-22 15:42:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-12-22 15:42:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-22 15:42:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-22 15:42:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-12-22 15:42:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-12-22 15:42:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:42:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:42:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-12-22 15:42:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-12-22 15:42:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-12-22 15:42:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-12-22 15:42:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-12-22 15:42:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-12-22 15:42:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-12-22 15:42:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-22 15:42:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-22 15:42:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:42:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:42:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-12-22 15:42:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-22 15:42:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-22 15:42:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-12-22 15:42:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-12-22 15:42:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-22 15:42:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-12-22 15:42:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 15:42:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 15:42:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 15:42:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-22 15:42:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 15:42:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-22 15:42:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:42:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:42:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:42:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:42:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-22 15:42:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:42:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:42:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-12-22 15:42:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-12-22 15:42:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:42:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:42:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-12-22 15:42:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-12-22 15:42:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-12-22 15:42:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-12-22 15:42:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-12-22 15:42:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-12-22 15:42:56,132 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:42:56,139 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:42:56,329 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:43:19,499 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:43:19,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:43:19,531 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-22 15:43:19,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:43:19 BoogieIcfgContainer [2021-12-22 15:43:19,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:43:19,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:43:19,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:43:19,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:43:19,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:42:43" (1/3) ... [2021-12-22 15:43:19,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462dbe0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:43:19, skipping insertion in model container [2021-12-22 15:43:19,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52" (2/3) ... [2021-12-22 15:43:19,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462dbe0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:43:19, skipping insertion in model container [2021-12-22 15:43:19,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:43:19" (3/3) ... [2021-12-22 15:43:19,549 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-12-22 15:43:19,558 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:43:19,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:43:19,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:43:19,636 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:43:19,637 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:43:19,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 4969 states, 3485 states have (on average 1.3351506456241033) internal successors, (4653), 3564 states have internal predecessors, (4653), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) [2021-12-22 15:43:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-22 15:43:19,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:19,735 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] [2021-12-22 15:43:19,736 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash -362375395, now seen corresponding path program 1 times [2021-12-22 15:43:19,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:19,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280098161] [2021-12-22 15:43:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:19,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:43:20,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:20,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280098161] [2021-12-22 15:43:20,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280098161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:20,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:20,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:20,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335264360] [2021-12-22 15:43:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:20,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:20,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:20,804 INFO L87 Difference]: Start difference. First operand has 4969 states, 3485 states have (on average 1.3351506456241033) internal successors, (4653), 3564 states have internal predecessors, (4653), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) 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) [2021-12-22 15:43:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:21,424 INFO L93 Difference]: Finished difference Result 9891 states and 14297 transitions. [2021-12-22 15:43:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:21,427 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 [2021-12-22 15:43:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:21,469 INFO L225 Difference]: With dead ends: 9891 [2021-12-22 15:43:21,469 INFO L226 Difference]: Without dead ends: 4935 [2021-12-22 15:43:21,503 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 [2021-12-22 15:43:21,505 INFO L933 BasicCegarLoop]: 7058 mSDtfsCounter, 7033 mSDsluCounter, 14099 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7049 SdHoareTripleChecker+Valid, 21157 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:21,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7049 Valid, 21157 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2021-12-22 15:43:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4935. [2021-12-22 15:43:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 3458 states have (on average 1.3270676691729324) internal successors, (4589), 3534 states have internal predecessors, (4589), 1230 states have call successors, (1230), 245 states have call predecessors, (1230), 244 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-12-22 15:43:21,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7046 transitions. [2021-12-22 15:43:21,859 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7046 transitions. Word has length 48 [2021-12-22 15:43:21,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:21,860 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 7046 transitions. [2021-12-22 15:43:21,861 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) [2021-12-22 15:43:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7046 transitions. [2021-12-22 15:43:21,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-22 15:43:21,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:21,864 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] [2021-12-22 15:43:21,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:43:21,865 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash 392208065, now seen corresponding path program 1 times [2021-12-22 15:43:21,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:21,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207711166] [2021-12-22 15:43:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:21,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:43:22,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:22,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207711166] [2021-12-22 15:43:22,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207711166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:22,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:22,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:22,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219617824] [2021-12-22 15:43:22,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:22,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:22,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:22,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:22,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:22,404 INFO L87 Difference]: Start difference. First operand 4935 states and 7046 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) [2021-12-22 15:43:22,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:22,670 INFO L93 Difference]: Finished difference Result 4941 states and 7051 transitions. [2021-12-22 15:43:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:22,671 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 [2021-12-22 15:43:22,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:22,706 INFO L225 Difference]: With dead ends: 4941 [2021-12-22 15:43:22,706 INFO L226 Difference]: Without dead ends: 4939 [2021-12-22 15:43:22,710 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 [2021-12-22 15:43:22,711 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7025 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:22,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7025 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2021-12-22 15:43:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2021-12-22 15:43:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3461 states have (on average 1.3267841664258884) internal successors, (4592), 3537 states have internal predecessors, (4592), 1230 states have call successors, (1230), 246 states have call predecessors, (1230), 245 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-12-22 15:43:22,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7049 transitions. [2021-12-22 15:43:22,915 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7049 transitions. Word has length 53 [2021-12-22 15:43:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:22,916 INFO L470 AbstractCegarLoop]: Abstraction has 4939 states and 7049 transitions. [2021-12-22 15:43:22,916 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) [2021-12-22 15:43:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7049 transitions. [2021-12-22 15:43:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-22 15:43:22,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:22,918 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] [2021-12-22 15:43:22,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:43:22,919 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:22,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:22,919 INFO L85 PathProgramCache]: Analyzing trace with hash 9098589, now seen corresponding path program 1 times [2021-12-22 15:43:22,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:22,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486319403] [2021-12-22 15:43:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:22,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 15:43:23,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486319403] [2021-12-22 15:43:23,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486319403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:23,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:23,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:23,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433677644] [2021-12-22 15:43:23,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:23,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:23,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:23,579 INFO L87 Difference]: Start difference. First operand 4939 states and 7049 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) [2021-12-22 15:43:23,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:23,822 INFO L93 Difference]: Finished difference Result 4945 states and 7054 transitions. [2021-12-22 15:43:23,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:23,823 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 [2021-12-22 15:43:23,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:23,855 INFO L225 Difference]: With dead ends: 4945 [2021-12-22 15:43:23,855 INFO L226 Difference]: Without dead ends: 4943 [2021-12-22 15:43:23,860 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 [2021-12-22 15:43:23,861 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7024 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:23,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7024 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2021-12-22 15:43:24,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2021-12-22 15:43:24,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 3464 states have (on average 1.326501154734411) internal successors, (4595), 3540 states have internal predecessors, (4595), 1230 states have call successors, (1230), 247 states have call predecessors, (1230), 246 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-12-22 15:43:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7052 transitions. [2021-12-22 15:43:24,056 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7052 transitions. Word has length 58 [2021-12-22 15:43:24,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:24,057 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7052 transitions. [2021-12-22 15:43:24,057 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) [2021-12-22 15:43:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7052 transitions. [2021-12-22 15:43:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-22 15:43:24,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:24,059 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] [2021-12-22 15:43:24,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:43:24,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:24,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1906538497, now seen corresponding path program 1 times [2021-12-22 15:43:24,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:24,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204300943] [2021-12-22 15:43:24,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:24,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 15:43:24,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:24,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204300943] [2021-12-22 15:43:24,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204300943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:24,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:24,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:24,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347925175] [2021-12-22 15:43:24,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:24,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:24,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:24,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:24,560 INFO L87 Difference]: Start difference. First operand 4943 states and 7052 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) [2021-12-22 15:43:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:24,828 INFO L93 Difference]: Finished difference Result 4981 states and 7082 transitions. [2021-12-22 15:43:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:24,829 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 [2021-12-22 15:43:24,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:24,859 INFO L225 Difference]: With dead ends: 4981 [2021-12-22 15:43:24,860 INFO L226 Difference]: Without dead ends: 4979 [2021-12-22 15:43:24,865 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 [2021-12-22 15:43:24,867 INFO L933 BasicCegarLoop]: 7046 mSDtfsCounter, 6958 mSDsluCounter, 14145 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 21191 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 [2021-12-22 15:43:24,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 21191 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2021-12-22 15:43:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4977. [2021-12-22 15:43:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4977 states, 3488 states have (on average 1.3245412844036697) internal successors, (4620), 3564 states have internal predecessors, (4620), 1231 states have call successors, (1231), 256 states have call predecessors, (1231), 255 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 7079 transitions. [2021-12-22 15:43:25,081 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 7079 transitions. Word has length 63 [2021-12-22 15:43:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:25,082 INFO L470 AbstractCegarLoop]: Abstraction has 4977 states and 7079 transitions. [2021-12-22 15:43:25,082 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) [2021-12-22 15:43:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 7079 transitions. [2021-12-22 15:43:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-22 15:43:25,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:25,144 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] [2021-12-22 15:43:25,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:43:25,144 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:25,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2023224221, now seen corresponding path program 1 times [2021-12-22 15:43:25,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:25,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953774958] [2021-12-22 15:43:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:25,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:43:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-22 15:43:25,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:25,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953774958] [2021-12-22 15:43:25,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953774958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:25,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:25,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:25,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470601460] [2021-12-22 15:43:25,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:25,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:25,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:25,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:25,574 INFO L87 Difference]: Start difference. First operand 4977 states and 7079 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) [2021-12-22 15:43:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:25,824 INFO L93 Difference]: Finished difference Result 4983 states and 7084 transitions. [2021-12-22 15:43:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:25,825 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 [2021-12-22 15:43:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:25,857 INFO L225 Difference]: With dead ends: 4983 [2021-12-22 15:43:25,857 INFO L226 Difference]: Without dead ends: 4981 [2021-12-22 15:43:25,862 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 [2021-12-22 15:43:25,863 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7022 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:25,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7022 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2021-12-22 15:43:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4981. [2021-12-22 15:43:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4981 states, 3491 states have (on average 1.3242623890002865) internal successors, (4623), 3567 states have internal predecessors, (4623), 1231 states have call successors, (1231), 257 states have call predecessors, (1231), 256 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4981 states to 4981 states and 7082 transitions. [2021-12-22 15:43:26,090 INFO L78 Accepts]: Start accepts. Automaton has 4981 states and 7082 transitions. Word has length 68 [2021-12-22 15:43:26,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:26,091 INFO L470 AbstractCegarLoop]: Abstraction has 4981 states and 7082 transitions. [2021-12-22 15:43:26,092 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) [2021-12-22 15:43:26,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4981 states and 7082 transitions. [2021-12-22 15:43:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-22 15:43:26,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:26,093 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:26,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:43:26,093 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:26,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1735823039, now seen corresponding path program 1 times [2021-12-22 15:43:26,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:26,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423968423] [2021-12-22 15:43:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:26,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:43:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:43:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-22 15:43:26,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:26,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423968423] [2021-12-22 15:43:26,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423968423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:26,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:26,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:26,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768971965] [2021-12-22 15:43:26,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:26,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:26,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:26,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:26,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:26,558 INFO L87 Difference]: Start difference. First operand 4981 states and 7082 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:43:26,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:26,830 INFO L93 Difference]: Finished difference Result 4987 states and 7087 transitions. [2021-12-22 15:43:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:26,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-12-22 15:43:26,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:26,873 INFO L225 Difference]: With dead ends: 4987 [2021-12-22 15:43:26,874 INFO L226 Difference]: Without dead ends: 4985 [2021-12-22 15:43:26,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:26,881 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7021 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:26,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7021 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2021-12-22 15:43:27,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4985. [2021-12-22 15:43:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 3494 states have (on average 1.3239839725243274) internal successors, (4626), 3570 states have internal predecessors, (4626), 1231 states have call successors, (1231), 258 states have call predecessors, (1231), 257 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 7085 transitions. [2021-12-22 15:43:27,150 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 7085 transitions. Word has length 73 [2021-12-22 15:43:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:27,150 INFO L470 AbstractCegarLoop]: Abstraction has 4985 states and 7085 transitions. [2021-12-22 15:43:27,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:43:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 7085 transitions. [2021-12-22 15:43:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 15:43:27,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:27,152 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2021-12-22 15:43:27,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:43:27,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 754315741, now seen corresponding path program 1 times [2021-12-22 15:43:27,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:27,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59861524] [2021-12-22 15:43:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:27,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:43:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:43:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:43:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-22 15:43:27,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:27,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59861524] [2021-12-22 15:43:27,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59861524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:27,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:27,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:27,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430997845] [2021-12-22 15:43:27,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:27,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:27,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:27,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:27,597 INFO L87 Difference]: Start difference. First operand 4985 states and 7085 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:43:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:27,889 INFO L93 Difference]: Finished difference Result 4991 states and 7090 transitions. [2021-12-22 15:43:27,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:27,890 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, (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 78 [2021-12-22 15:43:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:27,913 INFO L225 Difference]: With dead ends: 4991 [2021-12-22 15:43:27,914 INFO L226 Difference]: Without dead ends: 4989 [2021-12-22 15:43:27,918 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 [2021-12-22 15:43:27,919 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7020 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:27,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7020 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2021-12-22 15:43:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4989. [2021-12-22 15:43:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4989 states, 3497 states have (on average 1.3237060337432085) internal successors, (4629), 3573 states have internal predecessors, (4629), 1231 states have call successors, (1231), 259 states have call predecessors, (1231), 258 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 7088 transitions. [2021-12-22 15:43:28,146 INFO L78 Accepts]: Start accepts. Automaton has 4989 states and 7088 transitions. Word has length 78 [2021-12-22 15:43:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:28,147 INFO L470 AbstractCegarLoop]: Abstraction has 4989 states and 7088 transitions. [2021-12-22 15:43:28,147 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:43:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4989 states and 7088 transitions. [2021-12-22 15:43:28,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-22 15:43:28,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:28,149 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] [2021-12-22 15:43:28,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:43:28,149 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash -223704447, now seen corresponding path program 1 times [2021-12-22 15:43:28,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:28,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995812503] [2021-12-22 15:43:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:28,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:43:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:43:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:43:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:43:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-22 15:43:28,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:28,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995812503] [2021-12-22 15:43:28,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995812503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:28,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:28,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:28,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069039912] [2021-12-22 15:43:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:28,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:28,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:28,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:28,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:28,556 INFO L87 Difference]: Start difference. First operand 4989 states and 7088 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) [2021-12-22 15:43:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:28,884 INFO L93 Difference]: Finished difference Result 4995 states and 7093 transitions. [2021-12-22 15:43:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:28,885 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 [2021-12-22 15:43:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:28,905 INFO L225 Difference]: With dead ends: 4995 [2021-12-22 15:43:28,905 INFO L226 Difference]: Without dead ends: 4993 [2021-12-22 15:43:28,908 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 [2021-12-22 15:43:28,908 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7019 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:28,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7019 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:28,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2021-12-22 15:43:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4993. [2021-12-22 15:43:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4993 states, 3500 states have (on average 1.3234285714285714) internal successors, (4632), 3576 states have internal predecessors, (4632), 1231 states have call successors, (1231), 260 states have call predecessors, (1231), 259 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 7091 transitions. [2021-12-22 15:43:29,174 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 7091 transitions. Word has length 83 [2021-12-22 15:43:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:29,174 INFO L470 AbstractCegarLoop]: Abstraction has 4993 states and 7091 transitions. [2021-12-22 15:43:29,174 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) [2021-12-22 15:43:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 7091 transitions. [2021-12-22 15:43:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 15:43:29,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:29,176 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:29,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:43:29,177 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:29,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1052985721, now seen corresponding path program 1 times [2021-12-22 15:43:29,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:29,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100914092] [2021-12-22 15:43:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:29,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 15:43:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:29,680 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-22 15:43:29,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:29,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100914092] [2021-12-22 15:43:29,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100914092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:29,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:29,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:29,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488591951] [2021-12-22 15:43:29,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:29,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:29,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:29,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:29,683 INFO L87 Difference]: Start difference. First operand 4993 states and 7091 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:43:30,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:30,006 INFO L93 Difference]: Finished difference Result 4999 states and 7096 transitions. [2021-12-22 15:43:30,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:30,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-12-22 15:43:30,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:30,030 INFO L225 Difference]: With dead ends: 4999 [2021-12-22 15:43:30,031 INFO L226 Difference]: Without dead ends: 4997 [2021-12-22 15:43:30,034 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 [2021-12-22 15:43:30,035 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7008 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:30,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7008 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2021-12-22 15:43:30,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4997. [2021-12-22 15:43:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4997 states, 3503 states have (on average 1.323151584356266) internal successors, (4635), 3579 states have internal predecessors, (4635), 1231 states have call successors, (1231), 261 states have call predecessors, (1231), 260 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 7094 transitions. [2021-12-22 15:43:30,259 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 7094 transitions. Word has length 101 [2021-12-22 15:43:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:30,260 INFO L470 AbstractCegarLoop]: Abstraction has 4997 states and 7094 transitions. [2021-12-22 15:43:30,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:43:30,260 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 7094 transitions. [2021-12-22 15:43:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 15:43:30,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:30,261 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:30,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:43:30,262 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1303359593, now seen corresponding path program 1 times [2021-12-22 15:43:30,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:30,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477264657] [2021-12-22 15:43:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:30,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 15:43:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:43:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-22 15:43:30,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:30,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477264657] [2021-12-22 15:43:30,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477264657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:30,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:30,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:30,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751668805] [2021-12-22 15:43:30,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:30,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:30,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:30,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:30,721 INFO L87 Difference]: Start difference. First operand 4997 states and 7094 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:30,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:30,983 INFO L93 Difference]: Finished difference Result 5003 states and 7099 transitions. [2021-12-22 15:43:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:30,984 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2021-12-22 15:43:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:31,004 INFO L225 Difference]: With dead ends: 5003 [2021-12-22 15:43:31,005 INFO L226 Difference]: Without dead ends: 5001 [2021-12-22 15:43:31,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:31,008 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7007 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:31,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7007 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2021-12-22 15:43:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 5001. [2021-12-22 15:43:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5001 states, 3506 states have (on average 1.322875071306332) internal successors, (4638), 3582 states have internal predecessors, (4638), 1231 states have call successors, (1231), 262 states have call predecessors, (1231), 261 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 7097 transitions. [2021-12-22 15:43:31,330 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 7097 transitions. Word has length 106 [2021-12-22 15:43:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:31,330 INFO L470 AbstractCegarLoop]: Abstraction has 5001 states and 7097 transitions. [2021-12-22 15:43:31,330 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 7097 transitions. [2021-12-22 15:43:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-22 15:43:31,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:31,332 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 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] [2021-12-22 15:43:31,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:43:31,333 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash -901476771, now seen corresponding path program 1 times [2021-12-22 15:43:31,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:31,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132054702] [2021-12-22 15:43:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:31,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:43:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:43:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:43:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 15:43:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:43:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:43:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:43:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:43:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:43:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:43:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-22 15:43:31,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:31,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132054702] [2021-12-22 15:43:31,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132054702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:31,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:31,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:31,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667939441] [2021-12-22 15:43:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:31,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:31,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:31,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:31,814 INFO L87 Difference]: Start difference. First operand 5001 states and 7097 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:32,104 INFO L93 Difference]: Finished difference Result 5007 states and 7102 transitions. [2021-12-22 15:43:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:32,105 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2021-12-22 15:43:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:32,129 INFO L225 Difference]: With dead ends: 5007 [2021-12-22 15:43:32,130 INFO L226 Difference]: Without dead ends: 5005 [2021-12-22 15:43:32,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:32,135 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7016 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:32,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7016 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:32,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2021-12-22 15:43:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 5005. [2021-12-22 15:43:32,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 3509 states have (on average 1.322599031062981) internal successors, (4641), 3585 states have internal predecessors, (4641), 1231 states have call successors, (1231), 263 states have call predecessors, (1231), 262 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 7100 transitions. [2021-12-22 15:43:32,370 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 7100 transitions. Word has length 98 [2021-12-22 15:43:32,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:32,371 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 7100 transitions. [2021-12-22 15:43:32,371 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:32,371 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 7100 transitions. [2021-12-22 15:43:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-22 15:43:32,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:32,374 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:32,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 15:43:32,375 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:32,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1448389289, now seen corresponding path program 1 times [2021-12-22 15:43:32,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:32,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424625041] [2021-12-22 15:43:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:32,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 15:43:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:43:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:43:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-22 15:43:32,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:32,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424625041] [2021-12-22 15:43:32,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424625041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:32,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:32,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:32,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747345305] [2021-12-22 15:43:32,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:32,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:32,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:32,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:32,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:32,871 INFO L87 Difference]: Start difference. First operand 5005 states and 7100 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 15:43:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:33,182 INFO L93 Difference]: Finished difference Result 5011 states and 7105 transitions. [2021-12-22 15:43:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-12-22 15:43:33,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:33,211 INFO L225 Difference]: With dead ends: 5011 [2021-12-22 15:43:33,211 INFO L226 Difference]: Without dead ends: 5009 [2021-12-22 15:43:33,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:33,217 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7005 SdHoareTripleChecker+Valid, 21106 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 [2021-12-22 15:43:33,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7005 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:33,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2021-12-22 15:43:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 5009. [2021-12-22 15:43:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5009 states, 3512 states have (on average 1.3223234624145785) internal successors, (4644), 3588 states have internal predecessors, (4644), 1231 states have call successors, (1231), 264 states have call predecessors, (1231), 263 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-22 15:43:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 7103 transitions. [2021-12-22 15:43:33,457 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 7103 transitions. Word has length 116 [2021-12-22 15:43:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:33,458 INFO L470 AbstractCegarLoop]: Abstraction has 5009 states and 7103 transitions. [2021-12-22 15:43:33,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 15:43:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 7103 transitions. [2021-12-22 15:43:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-22 15:43:33,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:33,461 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] [2021-12-22 15:43:33,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 15:43:33,461 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash -543442425, now seen corresponding path program 1 times [2021-12-22 15:43:33,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:33,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103589699] [2021-12-22 15:43:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:33,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:43:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:43:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:43:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:43:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:43:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 15:43:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:43:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:43:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 15:43:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-22 15:43:34,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:34,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103589699] [2021-12-22 15:43:34,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103589699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:34,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:34,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:34,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703237351] [2021-12-22 15:43:34,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:34,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:34,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:34,003 INFO L87 Difference]: Start difference. First operand 5009 states and 7103 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)