./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-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-tmp.no-commuhash-c3fed41 [2021-12-16 05:02:47,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 05:02:47,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 05:02:48,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 05:02:48,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 05:02:48,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 05:02:48,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 05:02:48,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 05:02:48,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 05:02:48,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 05:02:48,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 05:02:48,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 05:02:48,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 05:02:48,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 05:02:48,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 05:02:48,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 05:02:48,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 05:02:48,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 05:02:48,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 05:02:48,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 05:02:48,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 05:02:48,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 05:02:48,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 05:02:48,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 05:02:48,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 05:02:48,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 05:02:48,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 05:02:48,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 05:02:48,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 05:02:48,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 05:02:48,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 05:02:48,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 05:02:48,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 05:02:48,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 05:02:48,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 05:02:48,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 05:02:48,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 05:02:48,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 05:02:48,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 05:02:48,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 05:02:48,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 05:02:48,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 05:02:48,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 05:02:48,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 05:02:48,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 05:02:48,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 05:02:48,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 05:02:48,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 05:02:48,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 05:02:48,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 05:02:48,112 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 05:02:48,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 05:02:48,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 05:02:48,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 05:02:48,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 05:02:48,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 05:02:48,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 05:02:48,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 05:02:48,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 05:02:48,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 05:02:48,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 05:02:48,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 05:02:48,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 05:02:48,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:02:48,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 05:02:48,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 05:02:48,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 05:02:48,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 05:02:48,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 05:02:48,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 05:02:48,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 05:02:48,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 05:02:48,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 05:02:48,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b [2021-12-16 05:02:48,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 05:02:48,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 05:02:48,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 05:02:48,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 05:02:48,379 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 05:02:48,380 INFO L432 ainManager$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 [2021-12-16 05:02:48,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1aa5bd25/d19ac2cc25854c57855a869b62f77027/FLAG32297f227 [2021-12-16 05:02:49,287 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 05:02:49,288 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 [2021-12-16 05:02:49,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1aa5bd25/d19ac2cc25854c57855a869b62f77027/FLAG32297f227 [2021-12-16 05:02:49,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1aa5bd25/d19ac2cc25854c57855a869b62f77027 [2021-12-16 05:02:49,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 05:02:49,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 05:02:49,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 05:02:49,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 05:02:49,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 05:02:49,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:49" (1/1) ... [2021-12-16 05:02:49,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34413bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:49, skipping insertion in model container [2021-12-16 05:02:49,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:49" (1/1) ... [2021-12-16 05:02:49,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 05:02:49,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 05:02:56,520 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] [2021-12-16 05:02:56,523 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] [2021-12-16 05:02:56,523 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] [2021-12-16 05:02:56,524 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] [2021-12-16 05:02:56,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:02:56,631 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 05:02:57,362 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] [2021-12-16 05:02:57,367 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] [2021-12-16 05:02:57,368 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] [2021-12-16 05:02:57,368 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] [2021-12-16 05:02:57,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:02:57,872 INFO L208 MainTranslator]: Completed translation [2021-12-16 05:02:57,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57 WrapperNode [2021-12-16 05:02:57,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 05:02:57,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 05:02:57,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 05:02:57,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 05:02:57,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,450 INFO L137 Inliner]: procedures = 794, calls = 7637, calls flagged for inlining = 373, calls inlined = 338, statements flattened = 15779 [2021-12-16 05:02:58,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 05:02:58,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 05:02:58,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 05:02:58,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 05:02:58,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:58,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:59,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:59,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:59,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 05:02:59,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 05:02:59,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 05:02:59,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 05:02:59,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (1/1) ... [2021-12-16 05:02:59,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:02:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 05:02:59,411 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) [2021-12-16 05:02:59,473 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 [2021-12-16 05:02:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-16 05:02:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-16 05:02:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-16 05:02:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 05:02:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 05:02:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-12-16 05:02:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-12-16 05:02:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-12-16 05:02:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-12-16 05:02:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-12-16 05:02:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-12-16 05:02:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-12-16 05:02:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-12-16 05:02:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-16 05:02:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-16 05:02:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-16 05:02:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-16 05:02:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:02:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:02:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 05:02:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 05:02:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 05:02:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 05:02:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-12-16 05:02:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-12-16 05:02:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-12-16 05:02:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-12-16 05:02:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-16 05:02:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-16 05:02:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 05:02:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 05:02:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 05:02:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 05:02:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-12-16 05:02:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-12-16 05:02:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-12-16 05:02:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-12-16 05:02:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 05:02:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 05:02:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 05:02:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 05:02:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-12-16 05:02:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-12-16 05:02:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-12-16 05:02:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-12-16 05:02:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-12-16 05:02:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-12-16 05:02:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-12-16 05:02:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-12-16 05:02:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-16 05:02:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-16 05:02:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-12-16 05:02:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-12-16 05:02:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-12-16 05:02:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-12-16 05:02:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 05:02:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 05:02:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-12-16 05:02:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-12-16 05:02:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-16 05:02:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-16 05:02:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 05:02:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 05:02:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-12-16 05:02:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-12-16 05:02:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-12-16 05:02:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-12-16 05:02:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-12-16 05:02:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-12-16 05:02:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 05:02:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 05:02:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 05:02:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-16 05:02:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-16 05:02:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-12-16 05:02:59,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-12-16 05:02:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-16 05:02:59,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-16 05:02:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-12-16 05:02:59,529 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-12-16 05:02:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-16 05:02:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-16 05:02:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-12-16 05:02:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-12-16 05:02:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-12-16 05:02:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-12-16 05:02:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 05:02:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 05:02:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 05:02:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 05:02:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-12-16 05:02:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-12-16 05:02:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:02:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:02:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 05:02:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-12-16 05:02:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-12-16 05:02:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-16 05:02:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-16 05:02:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 05:02:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 05:02:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 05:02:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 05:02:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 05:02:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 05:02:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 05:02:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-12-16 05:02:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-12-16 05:02:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-12-16 05:02:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-12-16 05:02:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 05:02:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 05:02:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-12-16 05:02:59,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-12-16 05:02:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 05:02:59,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 05:02:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-12-16 05:02:59,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-12-16 05:02:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 05:02:59,536 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 05:02:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 05:02:59,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 05:02:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-16 05:02:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-16 05:02:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-12-16 05:02:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-12-16 05:02:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 05:02:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 05:02:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-12-16 05:02:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-12-16 05:02:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 05:02:59,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 05:02:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-12-16 05:02:59,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-12-16 05:02:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-12-16 05:02:59,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-12-16 05:02:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 05:02:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 05:02:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 05:02:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-12-16 05:02:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-12-16 05:02:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-16 05:02:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-16 05:02:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-16 05:02:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-16 05:02:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-16 05:02:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-16 05:02:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-16 05:02:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-12-16 05:02:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-12-16 05:02:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-16 05:02:59,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-16 05:02:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-12-16 05:02:59,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-12-16 05:02:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-12-16 05:02:59,541 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-12-16 05:02:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 05:02:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 05:02:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-16 05:02:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-16 05:02:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 05:02:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 05:02:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-16 05:02:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-16 05:02:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 05:02:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 05:02:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 05:02:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 05:02:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-12-16 05:02:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-12-16 05:02:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-16 05:02:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-16 05:02:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 05:02:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 05:02:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 05:02:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-12-16 05:02:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-12-16 05:02:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-12-16 05:02:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-12-16 05:02:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-12-16 05:02:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-12-16 05:02:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 05:02:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-16 05:02:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-16 05:02:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-12-16 05:02:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-12-16 05:02:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-12-16 05:02:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-12-16 05:02:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-12-16 05:02:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-12-16 05:02:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-16 05:02:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-16 05:02:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-12-16 05:02:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-12-16 05:02:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 05:02:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 05:02:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-16 05:02:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-16 05:02:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-16 05:02:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-16 05:02:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-16 05:02:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-16 05:02:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 05:02:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 05:02:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 05:02:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 05:02:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-16 05:02:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-16 05:02:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 05:02:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 05:02:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-12-16 05:02:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-12-16 05:02:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 05:02:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-16 05:02:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-16 05:02:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 05:02:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 05:02:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-12-16 05:02:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-12-16 05:02:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2021-12-16 05:02:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2021-12-16 05:02:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-12-16 05:02:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-12-16 05:02:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-12-16 05:02:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-12-16 05:02:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-12-16 05:02:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-12-16 05:02:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-12-16 05:02:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-12-16 05:02:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-16 05:02:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-16 05:02:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-12-16 05:02:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-12-16 05:02:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-12-16 05:02:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-12-16 05:02:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-12-16 05:02:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-12-16 05:02:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-16 05:02:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-16 05:02:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-12-16 05:02:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-12-16 05:02:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-12-16 05:02:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-12-16 05:02:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-12-16 05:02:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-12-16 05:02:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-16 05:02:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-16 05:02:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-12-16 05:02:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-12-16 05:02:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-12-16 05:02:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-12-16 05:02:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-12-16 05:02:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-12-16 05:02:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 05:02:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 05:02:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-16 05:02:59,557 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-12-16 05:02:59,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-12-16 05:02:59,557 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-12-16 05:02:59,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-12-16 05:02:59,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-16 05:02:59,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-16 05:02:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-16 05:02:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-16 05:02:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2021-12-16 05:02:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2021-12-16 05:02:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 05:02:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 05:02:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-16 05:02:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-16 05:02:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-16 05:02:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-16 05:02:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-12-16 05:02:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-12-16 05:02:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 05:02:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 05:02:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 05:02:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 05:02:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-12-16 05:02:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-12-16 05:02:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-12-16 05:02:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-12-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-16 05:02:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-16 05:02:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-16 05:02:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-12-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-12-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-12-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-12-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-12-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-12-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 05:02:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-12-16 05:02:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-12-16 05:02:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-12-16 05:02:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-12-16 05:02:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-12-16 05:02:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-12-16 05:02:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 05:02:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 05:02:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-12-16 05:02:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-12-16 05:02:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-16 05:02:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-16 05:02:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 05:02:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 05:02:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 05:02:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 05:02:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-12-16 05:02:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-12-16 05:02:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-12-16 05:02:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-12-16 05:02:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-16 05:02:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-16 05:02:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 05:02:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-12-16 05:02:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-12-16 05:02:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-16 05:02:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-16 05:02:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-12-16 05:02:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-12-16 05:02:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-12-16 05:02:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-12-16 05:02:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 05:02:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 05:02:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-12-16 05:02:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-12-16 05:02:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-16 05:02:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-16 05:02:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 05:02:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-12-16 05:02:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-12-16 05:02:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 05:02:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 05:02:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 05:02:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-12-16 05:02:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-12-16 05:02:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 05:02:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 05:02:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 05:02:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 05:02:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-16 05:02:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-16 05:02:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 05:02:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 05:02:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-12-16 05:02:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-12-16 05:02:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-12-16 05:02:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-12-16 05:02:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2021-12-16 05:02:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2021-12-16 05:02:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-12-16 05:02:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-12-16 05:02:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-12-16 05:02:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-12-16 05:02:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-12-16 05:02:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-12-16 05:02:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-12-16 05:02:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-12-16 05:02:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-16 05:02:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-16 05:02:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 05:02:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 05:02:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-12-16 05:02:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-12-16 05:02:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-12-16 05:02:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-12-16 05:02:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-16 05:02:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-16 05:02:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-12-16 05:02:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-12-16 05:02:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-16 05:02:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-16 05:02:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-12-16 05:02:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-12-16 05:02:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 05:02:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 05:02:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-16 05:02:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-16 05:02:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-12-16 05:02:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-12-16 05:02:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-16 05:02:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-16 05:02:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-12-16 05:02:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-12-16 05:02:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 05:02:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 05:02:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-16 05:02:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-16 05:02:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-12-16 05:02:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-12-16 05:02:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-12-16 05:02:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-12-16 05:02:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 05:02:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 05:02:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 05:02:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-16 05:02:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-16 05:02:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-12-16 05:02:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-12-16 05:02:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:02:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:02:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-16 05:02:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-16 05:02:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-12-16 05:02:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-12-16 05:02:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-12-16 05:02:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-12-16 05:02:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-16 05:02:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-16 05:02:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-12-16 05:02:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-12-16 05:02:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-12-16 05:02:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-12-16 05:02:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-12-16 05:02:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-12-16 05:02:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-16 05:02:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-16 05:02:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-12-16 05:02:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-12-16 05:02:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-12-16 05:02:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-12-16 05:02:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-12-16 05:02:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-12-16 05:02:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-12-16 05:02:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-12-16 05:02:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 05:02:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 05:02:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-16 05:02:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-16 05:02:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-16 05:02:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-16 05:02:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-16 05:02:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-16 05:02:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-16 05:02:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-16 05:02:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-16 05:02:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-16 05:02:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 05:02:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-12-16 05:02:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-12-16 05:02:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 05:02:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 05:02:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-16 05:02:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-16 05:02:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 05:02:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 05:02:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-16 05:02:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-16 05:02:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-12-16 05:02:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-12-16 05:02:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-12-16 05:02:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-12-16 05:02:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-12-16 05:02:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-12-16 05:02:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 05:02:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 05:02:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2021-12-16 05:02:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2021-12-16 05:02:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-12-16 05:02:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-12-16 05:02:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-16 05:02:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-16 05:02:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-12-16 05:02:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-12-16 05:02:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-16 05:02:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-16 05:02:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-12-16 05:02:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-12-16 05:02:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 05:02:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 05:02:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-16 05:02:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-16 05:02:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-16 05:02:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-16 05:02:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-12-16 05:02:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-12-16 05:02:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-16 05:02:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-16 05:02:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-12-16 05:02:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-12-16 05:02:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-16 05:02:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-16 05:02:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 05:02:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 05:02:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-12-16 05:02:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-12-16 05:02:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-12-16 05:02:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-12-16 05:02:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-16 05:02:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-16 05:02:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-12-16 05:02:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-12-16 05:02:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 05:02:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 05:02:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 05:02:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-12-16 05:02:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-12-16 05:02:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 05:02:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 05:02:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-12-16 05:02:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-12-16 05:02:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-12-16 05:02:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-12-16 05:02:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-12-16 05:02:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-12-16 05:03:01,028 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 05:03:01,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 05:03:01,125 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 05:03:17,313 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 05:03:17,341 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 05:03:17,341 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-16 05:03:17,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:03:17 BoogieIcfgContainer [2021-12-16 05:03:17,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 05:03:17,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 05:03:17,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 05:03:17,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 05:03:17,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:02:49" (1/3) ... [2021-12-16 05:03:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e77fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:03:17, skipping insertion in model container [2021-12-16 05:03:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:57" (2/3) ... [2021-12-16 05:03:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e77fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:03:17, skipping insertion in model container [2021-12-16 05:03:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:03:17" (3/3) ... [2021-12-16 05:03:17,357 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-12-16 05:03:17,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 05:03:17,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 05:03:17,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 05:03:17,436 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 [2021-12-16 05:03:17,438 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 05:03:17,541 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) [2021-12-16 05:03:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-16 05:03:17,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:17,547 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] [2021-12-16 05:03:17,547 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)] === [2021-12-16 05:03:17,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash -362375395, now seen corresponding path program 1 times [2021-12-16 05:03:17,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:17,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317105056] [2021-12-16 05:03:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:17,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 05:03:18,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:18,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317105056] [2021-12-16 05:03:18,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317105056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:18,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:18,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:18,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837016431] [2021-12-16 05:03:18,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:18,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:18,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:18,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:18,745 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) [2021-12-16 05:03:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:19,323 INFO L93 Difference]: Finished difference Result 9891 states and 14297 transitions. [2021-12-16 05:03:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:19,326 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 [2021-12-16 05:03:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:19,385 INFO L225 Difference]: With dead ends: 9891 [2021-12-16 05:03:19,385 INFO L226 Difference]: Without dead ends: 4935 [2021-12-16 05:03:19,424 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 [2021-12-16 05:03:19,429 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 05:03:19,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7049 Valid, 21157 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 05:03:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2021-12-16 05:03:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4935. [2021-12-16 05:03:19,727 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) [2021-12-16 05:03:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7046 transitions. [2021-12-16 05:03:19,777 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7046 transitions. Word has length 48 [2021-12-16 05:03:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:19,777 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 7046 transitions. [2021-12-16 05:03:19,778 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) [2021-12-16 05:03:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7046 transitions. [2021-12-16 05:03:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-16 05:03:19,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:19,781 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] [2021-12-16 05:03:19,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 05:03:19,781 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)] === [2021-12-16 05:03:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:19,782 INFO L85 PathProgramCache]: Analyzing trace with hash 392208065, now seen corresponding path program 1 times [2021-12-16 05:03:19,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:19,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651128789] [2021-12-16 05:03:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:19,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 05:03:20,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:20,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651128789] [2021-12-16 05:03:20,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651128789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:20,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:20,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:20,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938353816] [2021-12-16 05:03:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:20,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:20,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:20,355 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) [2021-12-16 05:03:20,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:20,636 INFO L93 Difference]: Finished difference Result 4941 states and 7051 transitions. [2021-12-16 05:03:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:20,636 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 [2021-12-16 05:03:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:20,668 INFO L225 Difference]: With dead ends: 4941 [2021-12-16 05:03:20,669 INFO L226 Difference]: Without dead ends: 4939 [2021-12-16 05:03:20,673 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 [2021-12-16 05:03:20,674 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 [2021-12-16 05:03:20,674 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] [2021-12-16 05:03:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2021-12-16 05:03:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2021-12-16 05:03:20,867 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) [2021-12-16 05:03:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7049 transitions. [2021-12-16 05:03:20,898 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7049 transitions. Word has length 53 [2021-12-16 05:03:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:20,899 INFO L470 AbstractCegarLoop]: Abstraction has 4939 states and 7049 transitions. [2021-12-16 05:03:20,900 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) [2021-12-16 05:03:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7049 transitions. [2021-12-16 05:03:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-16 05:03:20,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:20,907 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] [2021-12-16 05:03:20,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 05:03:20,908 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)] === [2021-12-16 05:03:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:20,908 INFO L85 PathProgramCache]: Analyzing trace with hash 9098589, now seen corresponding path program 1 times [2021-12-16 05:03:20,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:20,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321261355] [2021-12-16 05:03:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:20,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-16 05:03:21,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:21,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321261355] [2021-12-16 05:03:21,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321261355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:21,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:21,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:21,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699091060] [2021-12-16 05:03:21,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:21,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:21,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:21,411 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) [2021-12-16 05:03:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:21,684 INFO L93 Difference]: Finished difference Result 4945 states and 7054 transitions. [2021-12-16 05:03:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:21,684 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 [2021-12-16 05:03:21,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:21,722 INFO L225 Difference]: With dead ends: 4945 [2021-12-16 05:03:21,722 INFO L226 Difference]: Without dead ends: 4943 [2021-12-16 05:03:21,728 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 [2021-12-16 05:03:21,733 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 [2021-12-16 05:03:21,734 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] [2021-12-16 05:03:21,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2021-12-16 05:03:22,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2021-12-16 05:03:22,047 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) [2021-12-16 05:03:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7052 transitions. [2021-12-16 05:03:22,081 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7052 transitions. Word has length 58 [2021-12-16 05:03:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:22,081 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7052 transitions. [2021-12-16 05:03:22,081 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) [2021-12-16 05:03:22,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7052 transitions. [2021-12-16 05:03:22,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-16 05:03:22,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:22,083 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] [2021-12-16 05:03:22,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 05:03:22,083 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)] === [2021-12-16 05:03:22,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:22,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1906538497, now seen corresponding path program 1 times [2021-12-16 05:03:22,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:22,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743090124] [2021-12-16 05:03:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:22,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-16 05:03:22,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:22,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743090124] [2021-12-16 05:03:22,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743090124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:22,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:22,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:22,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54133542] [2021-12-16 05:03:22,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:22,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:22,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:22,578 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) [2021-12-16 05:03:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:22,884 INFO L93 Difference]: Finished difference Result 4981 states and 7082 transitions. [2021-12-16 05:03:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:22,885 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, (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 [2021-12-16 05:03:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:22,917 INFO L225 Difference]: With dead ends: 4981 [2021-12-16 05:03:22,918 INFO L226 Difference]: Without dead ends: 4979 [2021-12-16 05:03:22,924 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 [2021-12-16 05:03:22,924 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 [2021-12-16 05:03:22,925 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] [2021-12-16 05:03:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2021-12-16 05:03:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4977. [2021-12-16 05:03:23,130 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) [2021-12-16 05:03:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 7079 transitions. [2021-12-16 05:03:23,158 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 7079 transitions. Word has length 63 [2021-12-16 05:03:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:23,158 INFO L470 AbstractCegarLoop]: Abstraction has 4977 states and 7079 transitions. [2021-12-16 05:03:23,158 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) [2021-12-16 05:03:23,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 7079 transitions. [2021-12-16 05:03:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-16 05:03:23,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:23,160 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] [2021-12-16 05:03:23,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 05:03:23,160 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)] === [2021-12-16 05:03:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2023224221, now seen corresponding path program 1 times [2021-12-16 05:03:23,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:23,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034810885] [2021-12-16 05:03:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:23,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-16 05:03:23,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:23,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034810885] [2021-12-16 05:03:23,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034810885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:23,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:23,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:23,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460630984] [2021-12-16 05:03:23,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:23,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:23,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:23,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:23,572 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) [2021-12-16 05:03:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:23,846 INFO L93 Difference]: Finished difference Result 4983 states and 7084 transitions. [2021-12-16 05:03:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:23,847 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 [2021-12-16 05:03:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:23,881 INFO L225 Difference]: With dead ends: 4983 [2021-12-16 05:03:23,881 INFO L226 Difference]: Without dead ends: 4981 [2021-12-16 05:03:23,886 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 [2021-12-16 05:03:23,889 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 [2021-12-16 05:03:23,890 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] [2021-12-16 05:03:23,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2021-12-16 05:03:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4981. [2021-12-16 05:03:24,100 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) [2021-12-16 05:03:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4981 states to 4981 states and 7082 transitions. [2021-12-16 05:03:24,124 INFO L78 Accepts]: Start accepts. Automaton has 4981 states and 7082 transitions. Word has length 68 [2021-12-16 05:03:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:24,124 INFO L470 AbstractCegarLoop]: Abstraction has 4981 states and 7082 transitions. [2021-12-16 05:03:24,125 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) [2021-12-16 05:03:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4981 states and 7082 transitions. [2021-12-16 05:03:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 05:03:24,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:24,126 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] [2021-12-16 05:03:24,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 05:03:24,126 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)] === [2021-12-16 05:03:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1735823039, now seen corresponding path program 1 times [2021-12-16 05:03:24,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433832096] [2021-12-16 05:03:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:24,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 05:03:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-16 05:03:24,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:24,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433832096] [2021-12-16 05:03:24,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433832096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:24,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:24,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:24,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597541776] [2021-12-16 05:03:24,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:24,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:24,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:24,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:24,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:24,626 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) [2021-12-16 05:03:24,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:24,901 INFO L93 Difference]: Finished difference Result 4987 states and 7087 transitions. [2021-12-16 05:03:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:24,901 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 [2021-12-16 05:03:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:24,955 INFO L225 Difference]: With dead ends: 4987 [2021-12-16 05:03:24,955 INFO L226 Difference]: Without dead ends: 4985 [2021-12-16 05:03:24,961 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 [2021-12-16 05:03:24,962 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 [2021-12-16 05:03:24,963 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] [2021-12-16 05:03:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2021-12-16 05:03:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4985. [2021-12-16 05:03:25,174 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) [2021-12-16 05:03:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 7085 transitions. [2021-12-16 05:03:25,201 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 7085 transitions. Word has length 73 [2021-12-16 05:03:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:25,202 INFO L470 AbstractCegarLoop]: Abstraction has 4985 states and 7085 transitions. [2021-12-16 05:03:25,202 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) [2021-12-16 05:03:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 7085 transitions. [2021-12-16 05:03:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-16 05:03:25,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:25,204 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] [2021-12-16 05:03:25,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 05:03:25,204 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)] === [2021-12-16 05:03:25,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash 754315741, now seen corresponding path program 1 times [2021-12-16 05:03:25,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:25,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713961688] [2021-12-16 05:03:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:25,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 05:03:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:03:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-16 05:03:25,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:25,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713961688] [2021-12-16 05:03:25,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713961688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:25,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:25,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:25,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055001055] [2021-12-16 05:03:25,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:25,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:25,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:25,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:25,663 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) [2021-12-16 05:03:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:25,908 INFO L93 Difference]: Finished difference Result 4991 states and 7090 transitions. [2021-12-16 05:03:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:25,908 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 [2021-12-16 05:03:25,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:25,934 INFO L225 Difference]: With dead ends: 4991 [2021-12-16 05:03:25,935 INFO L226 Difference]: Without dead ends: 4989 [2021-12-16 05:03:25,938 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 [2021-12-16 05:03:25,939 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 [2021-12-16 05:03:25,940 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] [2021-12-16 05:03:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2021-12-16 05:03:26,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4989. [2021-12-16 05:03:26,123 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) [2021-12-16 05:03:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 7088 transitions. [2021-12-16 05:03:26,147 INFO L78 Accepts]: Start accepts. Automaton has 4989 states and 7088 transitions. Word has length 78 [2021-12-16 05:03:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:26,149 INFO L470 AbstractCegarLoop]: Abstraction has 4989 states and 7088 transitions. [2021-12-16 05:03:26,149 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) [2021-12-16 05:03:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4989 states and 7088 transitions. [2021-12-16 05:03:26,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 05:03:26,153 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:26,153 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] [2021-12-16 05:03:26,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 05:03:26,154 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)] === [2021-12-16 05:03:26,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash -223704447, now seen corresponding path program 1 times [2021-12-16 05:03:26,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:26,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532933531] [2021-12-16 05:03:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:26,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 05:03:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:03:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 05:03:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-16 05:03:26,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:26,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532933531] [2021-12-16 05:03:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532933531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:26,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:26,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321662949] [2021-12-16 05:03:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:26,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:26,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:26,651 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) [2021-12-16 05:03:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:26,896 INFO L93 Difference]: Finished difference Result 4995 states and 7093 transitions. [2021-12-16 05:03:26,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:26,897 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 [2021-12-16 05:03:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:26,923 INFO L225 Difference]: With dead ends: 4995 [2021-12-16 05:03:26,923 INFO L226 Difference]: Without dead ends: 4993 [2021-12-16 05:03:26,927 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 [2021-12-16 05:03:26,928 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 [2021-12-16 05:03:26,928 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] [2021-12-16 05:03:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2021-12-16 05:03:27,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4993. [2021-12-16 05:03:27,112 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) [2021-12-16 05:03:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 7091 transitions. [2021-12-16 05:03:27,135 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 7091 transitions. Word has length 83 [2021-12-16 05:03:27,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:27,136 INFO L470 AbstractCegarLoop]: Abstraction has 4993 states and 7091 transitions. [2021-12-16 05:03:27,136 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) [2021-12-16 05:03:27,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 7091 transitions. [2021-12-16 05:03:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-16 05:03:27,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:27,140 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] [2021-12-16 05:03:27,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 05:03:27,141 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)] === [2021-12-16 05:03:27,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:27,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1052985721, now seen corresponding path program 1 times [2021-12-16 05:03:27,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:27,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644587642] [2021-12-16 05:03:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:27,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-16 05:03:27,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:27,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644587642] [2021-12-16 05:03:27,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644587642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:27,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:27,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:27,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474958325] [2021-12-16 05:03:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:27,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:27,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:27,576 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) [2021-12-16 05:03:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:27,827 INFO L93 Difference]: Finished difference Result 4999 states and 7096 transitions. [2021-12-16 05:03:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:27,828 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 [2021-12-16 05:03:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:27,853 INFO L225 Difference]: With dead ends: 4999 [2021-12-16 05:03:27,854 INFO L226 Difference]: Without dead ends: 4997 [2021-12-16 05:03:27,858 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 [2021-12-16 05:03:27,860 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 [2021-12-16 05:03:27,860 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] [2021-12-16 05:03:27,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2021-12-16 05:03:28,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4997. [2021-12-16 05:03:28,054 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) [2021-12-16 05:03:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 7094 transitions. [2021-12-16 05:03:28,077 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 7094 transitions. Word has length 101 [2021-12-16 05:03:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:28,078 INFO L470 AbstractCegarLoop]: Abstraction has 4997 states and 7094 transitions. [2021-12-16 05:03:28,078 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) [2021-12-16 05:03:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 7094 transitions. [2021-12-16 05:03:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-16 05:03:28,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:28,080 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] [2021-12-16 05:03:28,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 05:03:28,080 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)] === [2021-12-16 05:03:28,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:28,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1303359593, now seen corresponding path program 1 times [2021-12-16 05:03:28,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:28,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228797645] [2021-12-16 05:03:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:28,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:03:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-16 05:03:28,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:28,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228797645] [2021-12-16 05:03:28,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228797645] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:28,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:28,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:28,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980806569] [2021-12-16 05:03:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:28,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:28,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:28,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:28,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:28,602 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) [2021-12-16 05:03:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:28,918 INFO L93 Difference]: Finished difference Result 5003 states and 7099 transitions. [2021-12-16 05:03:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:28,919 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 [2021-12-16 05:03:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:28,944 INFO L225 Difference]: With dead ends: 5003 [2021-12-16 05:03:28,944 INFO L226 Difference]: Without dead ends: 5001 [2021-12-16 05:03:28,949 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 [2021-12-16 05:03:28,949 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 [2021-12-16 05:03:28,950 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] [2021-12-16 05:03:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2021-12-16 05:03:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 5001. [2021-12-16 05:03:29,195 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) [2021-12-16 05:03:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 7097 transitions. [2021-12-16 05:03:29,218 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 7097 transitions. Word has length 106 [2021-12-16 05:03:29,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:29,219 INFO L470 AbstractCegarLoop]: Abstraction has 5001 states and 7097 transitions. [2021-12-16 05:03:29,219 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) [2021-12-16 05:03:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 7097 transitions. [2021-12-16 05:03:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-16 05:03:29,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:29,222 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] [2021-12-16 05:03:29,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 05:03:29,223 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)] === [2021-12-16 05:03:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:29,223 INFO L85 PathProgramCache]: Analyzing trace with hash -901476771, now seen corresponding path program 1 times [2021-12-16 05:03:29,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:29,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40576794] [2021-12-16 05:03:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:29,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 05:03:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:03:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 05:03:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 05:03:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 05:03:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 05:03:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-16 05:03:29,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40576794] [2021-12-16 05:03:29,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40576794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:29,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:29,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:29,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277149497] [2021-12-16 05:03:29,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:29,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:29,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:29,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:29,702 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) [2021-12-16 05:03:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:29,968 INFO L93 Difference]: Finished difference Result 5007 states and 7102 transitions. [2021-12-16 05:03:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:29,969 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 [2021-12-16 05:03:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:29,996 INFO L225 Difference]: With dead ends: 5007 [2021-12-16 05:03:29,997 INFO L226 Difference]: Without dead ends: 5005 [2021-12-16 05:03:30,000 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 [2021-12-16 05:03:30,002 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 [2021-12-16 05:03:30,002 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] [2021-12-16 05:03:30,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2021-12-16 05:03:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 5005. [2021-12-16 05:03:30,220 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) [2021-12-16 05:03:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 7100 transitions. [2021-12-16 05:03:30,245 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 7100 transitions. Word has length 98 [2021-12-16 05:03:30,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:30,245 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 7100 transitions. [2021-12-16 05:03:30,246 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) [2021-12-16 05:03:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 7100 transitions. [2021-12-16 05:03:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 05:03:30,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:30,248 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] [2021-12-16 05:03:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 05:03:30,248 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)] === [2021-12-16 05:03:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1448389289, now seen corresponding path program 1 times [2021-12-16 05:03:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:30,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752255628] [2021-12-16 05:03:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:30,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:03:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:03:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 05:03:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-16 05:03:30,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:30,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752255628] [2021-12-16 05:03:30,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752255628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:30,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:30,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:30,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757757727] [2021-12-16 05:03:30,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:30,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:30,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:30,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:30,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:30,780 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) [2021-12-16 05:03:31,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:31,115 INFO L93 Difference]: Finished difference Result 5011 states and 7105 transitions. [2021-12-16 05:03:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:31,116 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 [2021-12-16 05:03:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:31,137 INFO L225 Difference]: With dead ends: 5011 [2021-12-16 05:03:31,137 INFO L226 Difference]: Without dead ends: 5009 [2021-12-16 05:03:31,139 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 [2021-12-16 05:03:31,140 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 [2021-12-16 05:03:31,140 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] [2021-12-16 05:03:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2021-12-16 05:03:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 5009. [2021-12-16 05:03:31,338 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) [2021-12-16 05:03:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 7103 transitions. [2021-12-16 05:03:31,363 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 7103 transitions. Word has length 116 [2021-12-16 05:03:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:31,363 INFO L470 AbstractCegarLoop]: Abstraction has 5009 states and 7103 transitions. [2021-12-16 05:03:31,364 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) [2021-12-16 05:03:31,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 7103 transitions. [2021-12-16 05:03:31,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-16 05:03:31,366 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:31,366 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] [2021-12-16 05:03:31,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 05:03:31,367 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)] === [2021-12-16 05:03:31,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:31,367 INFO L85 PathProgramCache]: Analyzing trace with hash -543442425, now seen corresponding path program 1 times [2021-12-16 05:03:31,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:31,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147409907] [2021-12-16 05:03:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:31,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:03:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:03:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 05:03:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 05:03:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-16 05:03:31,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:31,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147409907] [2021-12-16 05:03:31,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147409907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:31,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:31,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:31,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149610591] [2021-12-16 05:03:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:31,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:31,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:31,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:31,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:31,833 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) [2021-12-16 05:03:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:32,088 INFO L93 Difference]: Finished difference Result 5015 states and 7108 transitions. [2021-12-16 05:03:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-12-16 05:03:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:32,112 INFO L225 Difference]: With dead ends: 5015 [2021-12-16 05:03:32,113 INFO L226 Difference]: Without dead ends: 5013 [2021-12-16 05:03:32,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:03:32,118 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, 7004 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 [2021-12-16 05:03:32,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7004 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:03:32,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2021-12-16 05:03:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5013. [2021-12-16 05:03:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 3515 states have (on average 1.3220483641536274) internal successors, (4647), 3591 states have internal predecessors, (4647), 1231 states have call successors, (1231), 265 states have call predecessors, (1231), 264 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-16 05:03:32,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 7106 transitions. [2021-12-16 05:03:32,366 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 7106 transitions. Word has length 121 [2021-12-16 05:03:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:32,366 INFO L470 AbstractCegarLoop]: Abstraction has 5013 states and 7106 transitions. [2021-12-16 05:03:32,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-16 05:03:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 7106 transitions. [2021-12-16 05:03:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-16 05:03:32,369 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:32,369 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:03:32,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 05:03:32,370 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:03:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:32,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1329865961, now seen corresponding path program 1 times [2021-12-16 05:03:32,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:32,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851373855] [2021-12-16 05:03:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:32,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:03:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:03:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 05:03:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 05:03:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 05:03:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-16 05:03:32,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851373855] [2021-12-16 05:03:32,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851373855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:32,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:32,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:32,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963555150] [2021-12-16 05:03:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:32,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:32,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:32,810 INFO L87 Difference]: Start difference. First operand 5013 states and 7106 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 05:03:33,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:33,056 INFO L93 Difference]: Finished difference Result 5019 states and 7111 transitions. [2021-12-16 05:03:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:33,057 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2021-12-16 05:03:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:33,081 INFO L225 Difference]: With dead ends: 5019 [2021-12-16 05:03:33,081 INFO L226 Difference]: Without dead ends: 5017 [2021-12-16 05:03:33,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:03:33,086 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, 7003 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 [2021-12-16 05:03:33,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7003 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:03:33,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2021-12-16 05:03:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 5017. [2021-12-16 05:03:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 3518 states have (on average 1.3217737350767482) internal successors, (4650), 3594 states have internal predecessors, (4650), 1231 states have call successors, (1231), 266 states have call predecessors, (1231), 265 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-12-16 05:03:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 7109 transitions. [2021-12-16 05:03:33,439 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 7109 transitions. Word has length 126 [2021-12-16 05:03:33,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:33,440 INFO L470 AbstractCegarLoop]: Abstraction has 5017 states and 7109 transitions. [2021-12-16 05:03:33,440 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 05:03:33,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 7109 transitions. [2021-12-16 05:03:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-16 05:03:33,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:33,443 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:03:33,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 05:03:33,443 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:03:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 62302941, now seen corresponding path program 1 times [2021-12-16 05:03:33,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:33,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379356497] [2021-12-16 05:03:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:33,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 05:03:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 05:03:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 05:03:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 05:03:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:03:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 05:03:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 05:03:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 05:03:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 05:03:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 05:03:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 05:03:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:03:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 05:03:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-16 05:03:33,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:33,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379356497] [2021-12-16 05:03:33,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379356497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:33,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:33,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:33,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922863383] [2021-12-16 05:03:33,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:33,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:33,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:33,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:33,882 INFO L87 Difference]: Start difference. First operand 5017 states and 7109 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 05:03:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:34,155 INFO L93 Difference]: Finished difference Result 5111 states and 7222 transitions. [2021-12-16 05:03:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:34,156 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2021-12-16 05:03:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:34,180 INFO L225 Difference]: With dead ends: 5111 [2021-12-16 05:03:34,181 INFO L226 Difference]: Without dead ends: 5107 [2021-12-16 05:03:34,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:03:34,187 INFO L933 BasicCegarLoop]: 7064 mSDtfsCounter, 6933 mSDsluCounter, 14296 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6934 SdHoareTripleChecker+Valid, 21360 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 [2021-12-16 05:03:34,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6934 Valid, 21360 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:03:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2021-12-16 05:03:34,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5105. [2021-12-16 05:03:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 3583 states have (on average 1.3206809935807982) internal successors, (4732), 3658 states have internal predecessors, (4732), 1244 states have call successors, (1244), 277 states have call predecessors, (1244), 275 states have return successors, (1241), 1222 states have call predecessors, (1241), 1241 states have call successors, (1241) [2021-12-16 05:03:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 7217 transitions. [2021-12-16 05:03:34,435 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 7217 transitions. Word has length 118 [2021-12-16 05:03:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:34,435 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 7217 transitions. [2021-12-16 05:03:34,435 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 05:03:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 7217 transitions. [2021-12-16 05:03:34,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-16 05:03:34,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:34,438 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:03:34,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 05:03:34,439 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:03:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1029578537, now seen corresponding path program 1 times [2021-12-16 05:03:34,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248720330] [2021-12-16 05:03:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:34,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 05:03:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 05:03:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 05:03:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 05:03:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:03:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:03:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:03:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:03:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:03:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:03:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:03:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 05:03:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 05:03:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 05:03:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 05:03:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 05:03:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2021-12-16 05:03:34,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:34,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248720330] [2021-12-16 05:03:34,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248720330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:34,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:34,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:03:34,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176400606] [2021-12-16 05:03:34,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:34,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:03:34,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:34,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:03:34,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:03:34,858 INFO L87 Difference]: Start difference. First operand 5105 states and 7217 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-16 05:03:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:03:35,110 INFO L93 Difference]: Finished difference Result 5105 states and 7217 transitions. [2021-12-16 05:03:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:03:35,110 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 136 [2021-12-16 05:03:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:03:35,131 INFO L225 Difference]: With dead ends: 5105 [2021-12-16 05:03:35,131 INFO L226 Difference]: Without dead ends: 4960 [2021-12-16 05:03:35,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:03:35,137 INFO L933 BasicCegarLoop]: 7041 mSDtfsCounter, 6997 mSDsluCounter, 14062 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6997 SdHoareTripleChecker+Valid, 21103 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:03:35,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6997 Valid, 21103 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:03:35,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4960 states. [2021-12-16 05:03:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4960 to 4960. [2021-12-16 05:03:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 3488 states have (on average 1.3271215596330275) internal successors, (4629), 3561 states have internal predecessors, (4629), 1210 states have call successors, (1210), 260 states have call predecessors, (1210), 260 states have return successors, (1210), 1191 states have call predecessors, (1210), 1210 states have call successors, (1210) [2021-12-16 05:03:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 7049 transitions. [2021-12-16 05:03:35,491 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 7049 transitions. Word has length 136 [2021-12-16 05:03:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:03:35,491 INFO L470 AbstractCegarLoop]: Abstraction has 4960 states and 7049 transitions. [2021-12-16 05:03:35,491 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-16 05:03:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 7049 transitions. [2021-12-16 05:03:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-16 05:03:35,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:03:35,507 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:03:35,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 05:03:35,507 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:03:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:03:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -404474920, now seen corresponding path program 1 times [2021-12-16 05:03:35,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:03:35,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136385952] [2021-12-16 05:03:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:03:35,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:03:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:03:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:03:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 05:03:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:03:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:03:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:03:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:03:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:03:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:03:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:03:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:03:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 05:03:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 05:03:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 05:03:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 05:03:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 05:03:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 05:03:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 05:03:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-16 05:03:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 05:03:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 05:03:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-16 05:03:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-16 05:03:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-16 05:03:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:03:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 05:03:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 05:03:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:03:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:03:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:03:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-16 05:03:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:03:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-12-16 05:03:36,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:03:36,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136385952] [2021-12-16 05:03:36,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136385952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:03:36,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:03:36,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 05:03:36,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280975454] [2021-12-16 05:03:36,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:03:36,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 05:03:36,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:03:36,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 05:03:36,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-16 05:03:36,541 INFO L87 Difference]: Start difference. First operand 4960 states and 7049 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33)