./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 05:05:23,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 05:05:23,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 05:05:23,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 05:05:23,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 05:05:23,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 05:05:23,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 05:05:23,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 05:05:23,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 05:05:23,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 05:05:23,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 05:05:23,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 05:05:23,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 05:05:23,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 05:05:23,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 05:05:23,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 05:05:23,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 05:05:23,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 05:05:23,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 05:05:23,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 05:05:23,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 05:05:23,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 05:05:23,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 05:05:23,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 05:05:23,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 05:05:23,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 05:05:23,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 05:05:23,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 05:05:23,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 05:05:23,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 05:05:23,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 05:05:23,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 05:05:23,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 05:05:23,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 05:05:23,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 05:05:23,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 05:05:23,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 05:05:23,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 05:05:23,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 05:05:23,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 05:05:23,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 05:05:23,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 05:05:23,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 05:05:23,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 05:05:23,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 05:05:23,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 05:05:23,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 05:05:23,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 05:05:23,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 05:05:23,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 05:05:23,474 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 05:05:23,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 05:05:23,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 05:05:23,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 05:05:23,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 05:05:23,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 05:05:23,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 05:05:23,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 05:05:23,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 05:05:23,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 05:05:23,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 05:05:23,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:05:23,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 05:05:23,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 05:05:23,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 05:05:23,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 05:05:23,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 05:05:23,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 05:05:23,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-12-16 05:05:23,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 05:05:23,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 05:05:23,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 05:05:23,727 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 05:05:23,728 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 05:05:23,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-12-16 05:05:23,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88481d484/9099b79a636949f8bce44f430bbd3888/FLAGfabdbc10c [2021-12-16 05:05:24,446 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 05:05:24,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-12-16 05:05:24,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88481d484/9099b79a636949f8bce44f430bbd3888/FLAGfabdbc10c [2021-12-16 05:05:24,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88481d484/9099b79a636949f8bce44f430bbd3888 [2021-12-16 05:05:24,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 05:05:24,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 05:05:24,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 05:05:24,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 05:05:24,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 05:05:24,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:05:24" (1/1) ... [2021-12-16 05:05:24,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3323fe1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:24, skipping insertion in model container [2021-12-16 05:05:24,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:05:24" (1/1) ... [2021-12-16 05:05:24,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 05:05:24,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 05:05:26,780 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-12-16 05:05:26,782 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-12-16 05:05:26,783 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-12-16 05:05:26,783 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-12-16 05:05:26,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:05:26,820 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 05:05:27,103 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-12-16 05:05:27,104 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-12-16 05:05:27,104 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-12-16 05:05:27,105 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-12-16 05:05:27,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:05:27,225 INFO L208 MainTranslator]: Completed translation [2021-12-16 05:05:27,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27 WrapperNode [2021-12-16 05:05:27,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 05:05:27,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 05:05:27,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 05:05:27,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 05:05:27,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,520 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4077 [2021-12-16 05:05:27,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 05:05:27,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 05:05:27,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 05:05:27,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 05:05:27,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 05:05:27,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 05:05:27,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 05:05:27,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 05:05:27,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (1/1) ... [2021-12-16 05:05:27,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:05:27,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 05:05:27,716 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 05:05:27,734 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 05:05:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 05:05:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 05:05:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 05:05:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 05:05:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 05:05:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 05:05:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 05:05:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 05:05:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 05:05:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 05:05:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:05:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:05:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 05:05:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 05:05:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-12-16 05:05:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-12-16 05:05:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-16 05:05:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-16 05:05:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-16 05:05:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-16 05:05:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-16 05:05:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-16 05:05:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-12-16 05:05:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-12-16 05:05:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 05:05:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 05:05:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 05:05:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 05:05:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 05:05:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 05:05:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-16 05:05:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-16 05:05:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 05:05:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 05:05:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 05:05:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 05:05:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-16 05:05:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-16 05:05:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 05:05:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-12-16 05:05:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-12-16 05:05:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 05:05:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 05:05:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 05:05:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 05:05:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 05:05:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 05:05:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 05:05:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 05:05:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-12-16 05:05:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-12-16 05:05:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-12-16 05:05:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-12-16 05:05:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 05:05:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-12-16 05:05:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-12-16 05:05:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 05:05:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 05:05:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 05:05:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 05:05:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-16 05:05:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-16 05:05:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 05:05:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 05:05:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-16 05:05:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-16 05:05:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 05:05:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 05:05:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 05:05:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 05:05:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-12-16 05:05:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-12-16 05:05:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:05:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-12-16 05:05:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-16 05:05:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-16 05:05:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 05:05:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-12-16 05:05:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-12-16 05:05:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 05:05:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 05:05:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 05:05:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 05:05:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 05:05:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 05:05:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 05:05:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-16 05:05:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-16 05:05:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 05:05:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 05:05:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 05:05:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 05:05:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 05:05:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 05:05:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-16 05:05:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-16 05:05:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 05:05:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 05:05:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-12-16 05:05:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-12-16 05:05:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-12-16 05:05:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-12-16 05:05:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 05:05:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 05:05:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 05:05:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 05:05:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:05:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:05:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-16 05:05:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-16 05:05:27,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-12-16 05:05:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-12-16 05:05:27,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-16 05:05:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-16 05:05:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 05:05:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 05:05:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-16 05:05:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-16 05:05:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 05:05:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 05:05:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 05:05:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 05:05:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-12-16 05:05:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-12-16 05:05:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-12-16 05:05:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 05:05:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-16 05:05:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-16 05:05:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 05:05:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 05:05:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 05:05:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 05:05:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 05:05:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-12-16 05:05:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-12-16 05:05:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 05:05:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 05:05:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-12-16 05:05:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-12-16 05:05:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-12-16 05:05:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-12-16 05:05:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-12-16 05:05:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-12-16 05:05:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-12-16 05:05:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 05:05:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-12-16 05:05:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-12-16 05:05:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 05:05:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 05:05:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 05:05:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 05:05:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 05:05:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 05:05:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-12-16 05:05:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-12-16 05:05:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 05:05:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 05:05:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 05:05:28,359 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 05:05:28,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 05:05:28,685 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 05:05:29,988 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-16 05:05:30,111 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 05:05:30,122 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 05:05:30,122 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 05:05:30,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:05:30 BoogieIcfgContainer [2021-12-16 05:05:30,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 05:05:30,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 05:05:30,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 05:05:30,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 05:05:30,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:05:24" (1/3) ... [2021-12-16 05:05:30,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266cbfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:05:30, skipping insertion in model container [2021-12-16 05:05:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:05:27" (2/3) ... [2021-12-16 05:05:30,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266cbfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:05:30, skipping insertion in model container [2021-12-16 05:05:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:05:30" (3/3) ... [2021-12-16 05:05:30,131 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-12-16 05:05:30,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 05:05:30,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 05:05:30,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 05:05:30,175 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 05:05:30,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 05:05:30,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2021-12-16 05:05:30,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-16 05:05:30,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:30,219 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:30,220 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 05:05:30,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1591272428, now seen corresponding path program 1 times [2021-12-16 05:05:30,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:30,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673098543] [2021-12-16 05:05:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:30,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 05:05:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-16 05:05:30,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:30,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673098543] [2021-12-16 05:05:30,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673098543] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:30,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:30,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:30,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755006358] [2021-12-16 05:05:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:30,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:30,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:30,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:30,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:30,839 INFO L87 Difference]: Start difference. First operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:33,570 INFO L93 Difference]: Finished difference Result 4617 states and 6635 transitions. [2021-12-16 05:05:33,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:05:33,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2021-12-16 05:05:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:33,596 INFO L225 Difference]: With dead ends: 4617 [2021-12-16 05:05:33,596 INFO L226 Difference]: Without dead ends: 3130 [2021-12-16 05:05:33,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:05:33,608 INFO L933 BasicCegarLoop]: 2139 mSDtfsCounter, 2936 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:33,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3302 Valid, 4313 Invalid, 2801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1319 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-16 05:05:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-12-16 05:05:33,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2856. [2021-12-16 05:05:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 1975 states have (on average 1.2820253164556963) internal successors, (2532), 2020 states have internal predecessors, (2532), 726 states have call successors, (726), 153 states have call predecessors, (726), 152 states have return successors, (722), 710 states have call predecessors, (722), 722 states have call successors, (722) [2021-12-16 05:05:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3980 transitions. [2021-12-16 05:05:33,768 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3980 transitions. Word has length 127 [2021-12-16 05:05:33,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:33,770 INFO L470 AbstractCegarLoop]: Abstraction has 2856 states and 3980 transitions. [2021-12-16 05:05:33,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3980 transitions. [2021-12-16 05:05:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-16 05:05:33,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:33,780 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:33,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 05:05:33,780 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:05:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash 768924421, now seen corresponding path program 1 times [2021-12-16 05:05:33,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382709340] [2021-12-16 05:05:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:33,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 05:05:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 05:05:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-16 05:05:33,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:33,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382709340] [2021-12-16 05:05:33,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382709340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:33,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:33,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:33,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351769201] [2021-12-16 05:05:33,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:33,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:33,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:33,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:33,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:33,985 INFO L87 Difference]: Start difference. First operand 2856 states and 3980 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 05:05:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:36,653 INFO L93 Difference]: Finished difference Result 8962 states and 12595 transitions. [2021-12-16 05:05:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:05:36,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2021-12-16 05:05:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:36,699 INFO L225 Difference]: With dead ends: 8962 [2021-12-16 05:05:36,699 INFO L226 Difference]: Without dead ends: 6129 [2021-12-16 05:05:36,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:05:36,724 INFO L933 BasicCegarLoop]: 2145 mSDtfsCounter, 2946 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:36,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3303 Valid, 4373 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-16 05:05:36,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2021-12-16 05:05:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 5795. [2021-12-16 05:05:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 4042 states have (on average 1.2882236516575953) internal successors, (5207), 4146 states have internal predecessors, (5207), 1439 states have call successors, (1439), 304 states have call predecessors, (1439), 311 states have return successors, (1473), 1404 states have call predecessors, (1473), 1435 states have call successors, (1473) [2021-12-16 05:05:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8119 transitions. [2021-12-16 05:05:37,055 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8119 transitions. Word has length 131 [2021-12-16 05:05:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:37,057 INFO L470 AbstractCegarLoop]: Abstraction has 5795 states and 8119 transitions. [2021-12-16 05:05:37,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 05:05:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8119 transitions. [2021-12-16 05:05:37,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-16 05:05:37,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:37,065 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:37,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 05:05:37,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:05:37,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1281464054, now seen corresponding path program 1 times [2021-12-16 05:05:37,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:37,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559960840] [2021-12-16 05:05:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:37,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 05:05:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 05:05:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:37,353 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-16 05:05:37,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:37,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559960840] [2021-12-16 05:05:37,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559960840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:37,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:37,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:37,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078101706] [2021-12-16 05:05:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:37,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:37,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:37,355 INFO L87 Difference]: Start difference. First operand 5795 states and 8119 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 05:05:40,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:40,073 INFO L93 Difference]: Finished difference Result 17345 states and 24344 transitions. [2021-12-16 05:05:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:05:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2021-12-16 05:05:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:40,142 INFO L225 Difference]: With dead ends: 17345 [2021-12-16 05:05:40,142 INFO L226 Difference]: Without dead ends: 11573 [2021-12-16 05:05:40,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:05:40,178 INFO L933 BasicCegarLoop]: 2135 mSDtfsCounter, 2794 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:40,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3126 Valid, 4372 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-16 05:05:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2021-12-16 05:05:40,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 10695. [2021-12-16 05:05:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10695 states, 7426 states have (on average 1.281308914624293) internal successors, (9515), 7622 states have internal predecessors, (9515), 2669 states have call successors, (2669), 598 states have call predecessors, (2669), 597 states have return successors, (2711), 2586 states have call predecessors, (2711), 2665 states have call successors, (2711) [2021-12-16 05:05:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10695 states to 10695 states and 14895 transitions. [2021-12-16 05:05:40,641 INFO L78 Accepts]: Start accepts. Automaton has 10695 states and 14895 transitions. Word has length 131 [2021-12-16 05:05:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:40,642 INFO L470 AbstractCegarLoop]: Abstraction has 10695 states and 14895 transitions. [2021-12-16 05:05:40,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 05:05:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand 10695 states and 14895 transitions. [2021-12-16 05:05:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-16 05:05:40,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:40,646 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:40,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 05:05:40,646 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:05:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1749869785, now seen corresponding path program 1 times [2021-12-16 05:05:40,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253061884] [2021-12-16 05:05:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:40,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 05:05:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-16 05:05:40,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:40,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253061884] [2021-12-16 05:05:40,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253061884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:40,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:40,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 05:05:40,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474273881] [2021-12-16 05:05:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:40,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 05:05:40,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 05:05:40,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-16 05:05:40,921 INFO L87 Difference]: Start difference. First operand 10695 states and 14895 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:46,258 INFO L93 Difference]: Finished difference Result 25813 states and 36036 transitions. [2021-12-16 05:05:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 05:05:46,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2021-12-16 05:05:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:46,339 INFO L225 Difference]: With dead ends: 25813 [2021-12-16 05:05:46,339 INFO L226 Difference]: Without dead ends: 15141 [2021-12-16 05:05:46,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-16 05:05:46,376 INFO L933 BasicCegarLoop]: 2341 mSDtfsCounter, 5662 mSDsluCounter, 3645 mSDsCounter, 0 mSdLazyCounter, 4382 mSolverCounterSat, 2384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6214 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 6766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2384 IncrementalHoareTripleChecker+Valid, 4382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:46,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6214 Valid, 5986 Invalid, 6766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2384 Valid, 4382 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-16 05:05:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15141 states. [2021-12-16 05:05:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15141 to 13422. [2021-12-16 05:05:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 9503 states have (on average 1.2868567820688204) internal successors, (12229), 9736 states have internal predecessors, (12229), 3111 states have call successors, (3111), 820 states have call predecessors, (3111), 805 states have return successors, (3127), 2987 states have call predecessors, (3127), 3107 states have call successors, (3127) [2021-12-16 05:05:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 18467 transitions. [2021-12-16 05:05:46,801 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 18467 transitions. Word has length 137 [2021-12-16 05:05:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:46,803 INFO L470 AbstractCegarLoop]: Abstraction has 13422 states and 18467 transitions. [2021-12-16 05:05:46,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 18467 transitions. [2021-12-16 05:05:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-16 05:05:46,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:46,805 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:46,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 05:05:46,805 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 05:05:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2069662804, now seen corresponding path program 1 times [2021-12-16 05:05:46,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:46,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500913389] [2021-12-16 05:05:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:46,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 05:05:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-16 05:05:47,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:47,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500913389] [2021-12-16 05:05:47,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500913389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:47,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:47,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:47,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817197846] [2021-12-16 05:05:47,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:47,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:47,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:47,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:47,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:47,003 INFO L87 Difference]: Start difference. First operand 13422 states and 18467 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:50,202 INFO L93 Difference]: Finished difference Result 37638 states and 52173 transitions. [2021-12-16 05:05:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:05:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2021-12-16 05:05:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:50,296 INFO L225 Difference]: With dead ends: 37638 [2021-12-16 05:05:50,297 INFO L226 Difference]: Without dead ends: 24239 [2021-12-16 05:05:50,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:05:50,336 INFO L933 BasicCegarLoop]: 2109 mSDtfsCounter, 2770 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3109 SdHoareTripleChecker+Valid, 4305 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:50,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3109 Valid, 4305 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-16 05:05:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24239 states. [2021-12-16 05:05:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24239 to 21660. [2021-12-16 05:05:51,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21660 states, 15203 states have (on average 1.282444254423469) internal successors, (19497), 15580 states have internal predecessors, (19497), 5114 states have call successors, (5114), 1377 states have call predecessors, (5114), 1340 states have return successors, (5137), 4883 states have call predecessors, (5137), 5110 states have call successors, (5137) [2021-12-16 05:05:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21660 states to 21660 states and 29748 transitions. [2021-12-16 05:05:51,155 INFO L78 Accepts]: Start accepts. Automaton has 21660 states and 29748 transitions. Word has length 140 [2021-12-16 05:05:51,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:51,158 INFO L470 AbstractCegarLoop]: Abstraction has 21660 states and 29748 transitions. [2021-12-16 05:05:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 05:05:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 21660 states and 29748 transitions. [2021-12-16 05:05:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-16 05:05:51,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:51,161 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:05:51,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 05:05:51,161 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 05:05:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:51,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1823542494, now seen corresponding path program 1 times [2021-12-16 05:05:51,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:51,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862586439] [2021-12-16 05:05:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:51,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:05:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 05:05:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 05:05:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-16 05:05:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-12-16 05:05:51,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:51,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862586439] [2021-12-16 05:05:51,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862586439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:51,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:51,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:51,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698453092] [2021-12-16 05:05:51,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:51,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:51,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:51,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:51,443 INFO L87 Difference]: Start difference. First operand 21660 states and 29748 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 05:05:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:05:55,634 INFO L93 Difference]: Finished difference Result 68618 states and 95070 transitions. [2021-12-16 05:05:55,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:05:55,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2021-12-16 05:05:55,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:05:55,899 INFO L225 Difference]: With dead ends: 68618 [2021-12-16 05:05:55,899 INFO L226 Difference]: Without dead ends: 46981 [2021-12-16 05:05:56,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:05:56,129 INFO L933 BasicCegarLoop]: 2330 mSDtfsCounter, 2957 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 1344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-16 05:05:56,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3331 Valid, 4703 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1344 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-16 05:05:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46981 states. [2021-12-16 05:05:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46981 to 41883. [2021-12-16 05:05:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41883 states, 29355 states have (on average 1.2826775677056719) internal successors, (37653), 30131 states have internal predecessors, (37653), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2021-12-16 05:05:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41883 states to 41883 states and 57547 transitions. [2021-12-16 05:05:58,111 INFO L78 Accepts]: Start accepts. Automaton has 41883 states and 57547 transitions. Word has length 154 [2021-12-16 05:05:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:05:58,111 INFO L470 AbstractCegarLoop]: Abstraction has 41883 states and 57547 transitions. [2021-12-16 05:05:58,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 05:05:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 41883 states and 57547 transitions. [2021-12-16 05:05:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-16 05:05:58,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:05:58,114 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:05:58,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 05:05:58,115 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 05:05:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:05:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1687788886, now seen corresponding path program 1 times [2021-12-16 05:05:58,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:05:58,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994084814] [2021-12-16 05:05:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:05:58,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:05:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:05:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:05:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:05:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:05:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:05:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:05:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:05:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:05:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:05:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:05:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:05:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 05:05:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 05:05:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 05:05:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:05:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 05:05:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 05:05:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 05:05:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:05:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-16 05:05:58,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:05:58,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994084814] [2021-12-16 05:05:58,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994084814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:05:58,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:05:58,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:05:58,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291736127] [2021-12-16 05:05:58,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:05:58,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:05:58,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:05:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:05:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:05:58,620 INFO L87 Difference]: Start difference. First operand 41883 states and 57547 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-16 05:06:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:06:03,695 INFO L93 Difference]: Finished difference Result 135539 states and 190094 transitions. [2021-12-16 05:06:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 05:06:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-12-16 05:06:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:06:04,277 INFO L225 Difference]: With dead ends: 135539 [2021-12-16 05:06:04,278 INFO L226 Difference]: Without dead ends: 93735 [2021-12-16 05:06:04,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:06:04,450 INFO L933 BasicCegarLoop]: 3129 mSDtfsCounter, 2532 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 1214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 5756 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1214 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-16 05:06:04,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2906 Valid, 5756 Invalid, 2764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1214 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-16 05:06:04,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93735 states. [2021-12-16 05:06:07,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93735 to 83661. [2021-12-16 05:06:07,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83661 states, 58635 states have (on average 1.270998550353884) internal successors, (74525), 60185 states have internal predecessors, (74525), 19818 states have call successors, (19818), 5350 states have call predecessors, (19818), 5205 states have return successors, (20692), 18833 states have call predecessors, (20692), 19814 states have call successors, (20692) [2021-12-16 05:06:08,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83661 states to 83661 states and 115035 transitions. [2021-12-16 05:06:08,327 INFO L78 Accepts]: Start accepts. Automaton has 83661 states and 115035 transitions. Word has length 189 [2021-12-16 05:06:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:06:08,328 INFO L470 AbstractCegarLoop]: Abstraction has 83661 states and 115035 transitions. [2021-12-16 05:06:08,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-16 05:06:08,328 INFO L276 IsEmpty]: Start isEmpty. Operand 83661 states and 115035 transitions. [2021-12-16 05:06:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-16 05:06:08,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:06:08,331 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:06:08,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 05:06:08,332 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 05:06:08,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:06:08,332 INFO L85 PathProgramCache]: Analyzing trace with hash 920998572, now seen corresponding path program 1 times [2021-12-16 05:06:08,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:06:08,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825962689] [2021-12-16 05:06:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:06:08,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:06:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:06:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:06:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:06:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:06:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:06:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:06:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:06:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:06:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:06:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:06:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:06:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 05:06:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 05:06:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 05:06:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 05:06:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 05:06:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 05:06:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-16 05:06:08,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:06:08,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825962689] [2021-12-16 05:06:08,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825962689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:06:08,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:06:08,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:06:08,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534428352] [2021-12-16 05:06:08,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:06:08,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:06:08,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:06:08,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:06:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:06:08,856 INFO L87 Difference]: Start difference. First operand 83661 states and 115035 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-16 05:06:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:06:11,708 INFO L93 Difference]: Finished difference Result 130489 states and 179361 transitions. [2021-12-16 05:06:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 05:06:11,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-12-16 05:06:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:06:11,902 INFO L225 Difference]: With dead ends: 130489 [2021-12-16 05:06:11,903 INFO L226 Difference]: Without dead ends: 46907 [2021-12-16 05:06:12,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:06:12,317 INFO L933 BasicCegarLoop]: 1891 mSDtfsCounter, 2290 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 969 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 969 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:06:12,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2483 Valid, 2634 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [969 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 05:06:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46907 states. [2021-12-16 05:06:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46907 to 41883. [2021-12-16 05:06:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41883 states, 29355 states have (on average 1.2571963890308295) internal successors, (36905), 30131 states have internal predecessors, (36905), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2021-12-16 05:06:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41883 states to 41883 states and 56799 transitions. [2021-12-16 05:06:13,975 INFO L78 Accepts]: Start accepts. Automaton has 41883 states and 56799 transitions. Word has length 189 [2021-12-16 05:06:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:06:13,976 INFO L470 AbstractCegarLoop]: Abstraction has 41883 states and 56799 transitions. [2021-12-16 05:06:13,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-16 05:06:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 41883 states and 56799 transitions. [2021-12-16 05:06:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-16 05:06:13,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:06:13,978 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:06:13,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 05:06:13,978 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 05:06:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:06:13,979 INFO L85 PathProgramCache]: Analyzing trace with hash 866605674, now seen corresponding path program 1 times [2021-12-16 05:06:13,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:06:13,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361181223] [2021-12-16 05:06:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:06:13,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:06:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 05:06:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 05:06:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 05:06:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 05:06:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 05:06:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 05:06:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 05:06:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:06:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:06:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:06:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:06:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 05:06:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 05:06:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 05:06:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:06:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 05:06:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 05:06:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 05:06:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:06:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-16 05:06:14,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:06:14,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361181223] [2021-12-16 05:06:14,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361181223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:06:14,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:06:14,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:06:14,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529095615] [2021-12-16 05:06:14,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:06:14,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:06:14,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:06:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:06:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:06:14,227 INFO L87 Difference]: Start difference. First operand 41883 states and 56799 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)