./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 ff03de63 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-dev-ff03de6 [2021-12-21 17:18:44,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:18:44,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:18:44,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:18:44,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:18:44,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:18:44,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:18:44,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:18:44,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:18:44,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:18:44,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:18:44,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:18:44,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:18:44,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:18:44,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:18:44,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:18:44,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:18:44,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:18:44,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:18:44,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:18:44,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:18:44,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:18:44,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:18:44,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:18:44,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:18:44,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:18:44,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:18:44,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:18:44,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:18:44,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:18:44,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:18:44,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:18:44,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:18:44,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:18:44,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:18:44,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:18:44,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:18:44,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:18:44,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:18:44,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:18:44,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:18:44,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:18:44,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:18:44,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:18:44,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:18:44,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:18:44,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:18:44,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:18:44,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:18:44,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:18:44,697 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:18:44,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:18:44,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:18:44,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:18:44,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:18:44,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:18:44,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:18:44,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:18:44,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:18:44,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:18:44,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:18:44,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:18:44,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:18:44,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:18:44,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:18:44,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:18:44,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:18:44,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:18:44,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-12-21 17:18:44,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:18:44,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:18:44,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:18:44,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:18:44,925 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:18:44,926 INFO L432 ainManager$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 [2021-12-21 17:18:45,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896fe559a/c302f0ff4b214249b3a9865f04262c61/FLAG132719569 [2021-12-21 17:18:45,678 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:18:45,678 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 [2021-12-21 17:18:45,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896fe559a/c302f0ff4b214249b3a9865f04262c61/FLAG132719569 [2021-12-21 17:18:45,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896fe559a/c302f0ff4b214249b3a9865f04262c61 [2021-12-21 17:18:45,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:18:45,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:18:45,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:18:45,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:18:45,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:18:45,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:18:45" (1/1) ... [2021-12-21 17:18:45,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ede277a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:45, skipping insertion in model container [2021-12-21 17:18:45,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:18:45" (1/1) ... [2021-12-21 17:18:45,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:18:45,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:18:47,860 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] [2021-12-21 17:18:47,863 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] [2021-12-21 17:18:47,868 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] [2021-12-21 17:18:47,869 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] [2021-12-21 17:18:47,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:18:47,942 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:18:48,302 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] [2021-12-21 17:18:48,302 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] [2021-12-21 17:18:48,303 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] [2021-12-21 17:18:48,303 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] [2021-12-21 17:18:48,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:18:48,450 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:18:48,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48 WrapperNode [2021-12-21 17:18:48,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:18:48,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:18:48,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:18:48,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:18:48,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,737 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4077 [2021-12-21 17:18:48,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:18:48,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:18:48,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:18:48,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:18:48,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:18:48,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:18:48,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:18:48,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:18:48,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (1/1) ... [2021-12-21 17:18:48,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:18:48,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:18:48,985 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) [2021-12-21 17:18:49,007 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 [2021-12-21 17:18:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:18:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:18:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:18:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:18:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 17:18:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 17:18:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:18:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:18:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:18:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:18:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:18:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:18:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:18:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:18:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-12-21 17:18:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-12-21 17:18:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 17:18:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 17:18:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:18:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:18:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-21 17:18:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-21 17:18:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-12-21 17:18:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-12-21 17:18:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 17:18:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 17:18:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:18:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:18:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 17:18:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 17:18:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 17:18:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 17:18:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:18:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:18:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:18:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:18:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-21 17:18:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-21 17:18:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:18:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-12-21 17:18:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-12-21 17:18:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:18:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:18:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:18:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:18:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:18:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:18:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:18:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:18:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-12-21 17:18:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-12-21 17:18:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-12-21 17:18:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-12-21 17:18:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:18:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-12-21 17:18:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-12-21 17:18:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:18:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:18:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:18:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:18:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:18:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:18:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:18:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:18:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:18:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:18:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:18:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:18:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:18:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:18:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-12-21 17:18:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-12-21 17:18:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:18:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:18:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-12-21 17:18:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-12-21 17:18:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:18:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:18:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:18:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:18:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:18:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:18:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-12-21 17:18:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-12-21 17:18:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:18:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:18:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:18:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:18:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:18:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:18:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:18:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:18:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:18:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:18:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:18:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:18:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:18:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:18:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:18:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-21 17:18:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-21 17:18:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:18:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:18:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-12-21 17:18:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-12-21 17:18:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-12-21 17:18:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-12-21 17:18:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:18:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:18:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:18:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:18:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:18:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:18:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 17:18:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 17:18:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-12-21 17:18:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-12-21 17:18:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:18:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:18:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:18:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:18:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-21 17:18:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-21 17:18:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:18:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:18:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 17:18:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 17:18:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-12-21 17:18:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-12-21 17:18:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-12-21 17:18:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-12-21 17:18:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:18:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:18:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:18:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:18:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:18:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:18:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 17:18:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 17:18:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:18:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:18:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:18:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:18:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:18:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-12-21 17:18:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-12-21 17:18:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:18:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:18:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-12-21 17:18:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-12-21 17:18:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-12-21 17:18:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-12-21 17:18:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-12-21 17:18:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-12-21 17:18:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-12-21 17:18:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-12-21 17:18:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:18:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:18:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:18:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-12-21 17:18:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-12-21 17:18:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-12-21 17:18:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-12-21 17:18:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:18:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:18:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 17:18:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 17:18:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 17:18:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 17:18:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-12-21 17:18:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-12-21 17:18:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:18:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:18:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:18:49,769 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:18:49,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:18:50,115 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:18:51,816 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:18:51,973 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:18:51,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:18:51,987 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:18:51,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:18:51 BoogieIcfgContainer [2021-12-21 17:18:51,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:18:51,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:18:51,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:18:51,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:18:51,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:18:45" (1/3) ... [2021-12-21 17:18:51,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14561e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:18:51, skipping insertion in model container [2021-12-21 17:18:51,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:18:48" (2/3) ... [2021-12-21 17:18:51,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14561e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:18:51, skipping insertion in model container [2021-12-21 17:18:51,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:18:51" (3/3) ... [2021-12-21 17:18:51,999 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-12-21 17:18:52,003 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:18:52,004 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:18:52,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:18:52,055 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 [2021-12-21 17:18:52,056 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:18:52,097 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) [2021-12-21 17:18:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-21 17:18:52,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:18:52,111 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] [2021-12-21 17:18:52,112 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)] === [2021-12-21 17:18:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:18:52,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1591272428, now seen corresponding path program 1 times [2021-12-21 17:18:52,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:18:52,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086229993] [2021-12-21 17:18:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:18:52,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:18:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:18:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:18:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:18:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:18:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:18:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:18:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:18:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:18:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:18:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:18:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:18:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:18:52,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:18:52,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086229993] [2021-12-21 17:18:52,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086229993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:18:52,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:18:52,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:18:52,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688532978] [2021-12-21 17:18:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:18:52,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:18:52,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:18:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:18:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:18:52,956 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) [2021-12-21 17:18:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:18:56,799 INFO L93 Difference]: Finished difference Result 4617 states and 6635 transitions. [2021-12-21 17:18:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:18:56,801 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 [2021-12-21 17:18:56,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:18:56,844 INFO L225 Difference]: With dead ends: 4617 [2021-12-21 17:18:56,844 INFO L226 Difference]: Without dead ends: 3130 [2021-12-21 17:18:56,859 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 [2021-12-21 17:18:56,862 INFO L933 BasicCegarLoop]: 2143 mSDtfsCounter, 2936 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 4323 SdHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:18:56,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3300 Valid, 4323 Invalid, 2801 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1319 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-21 17:18:56,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-12-21 17:18:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2856. [2021-12-21 17:18:57,154 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) [2021-12-21 17:18:57,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3980 transitions. [2021-12-21 17:18:57,181 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3980 transitions. Word has length 127 [2021-12-21 17:18:57,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:18:57,182 INFO L470 AbstractCegarLoop]: Abstraction has 2856 states and 3980 transitions. [2021-12-21 17:18:57,182 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) [2021-12-21 17:18:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3980 transitions. [2021-12-21 17:18:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-21 17:18:57,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:18:57,187 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] [2021-12-21 17:18:57,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:18:57,188 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)] === [2021-12-21 17:18:57,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:18:57,189 INFO L85 PathProgramCache]: Analyzing trace with hash 768924421, now seen corresponding path program 1 times [2021-12-21 17:18:57,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:18:57,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486911985] [2021-12-21 17:18:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:18:57,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:18:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:18:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:18:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:18:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:18:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:18:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:18:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:18:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:18:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:18:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:18:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:18:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:18:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 17:18:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:18:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:18:57,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:18:57,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486911985] [2021-12-21 17:18:57,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486911985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:18:57,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:18:57,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:18:57,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538955815] [2021-12-21 17:18:57,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:18:57,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:18:57,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:18:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:18:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:18:57,500 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) [2021-12-21 17:19:00,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:00,878 INFO L93 Difference]: Finished difference Result 8962 states and 12595 transitions. [2021-12-21 17:19:00,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:19:00,878 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 [2021-12-21 17:19:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:00,928 INFO L225 Difference]: With dead ends: 8962 [2021-12-21 17:19:00,928 INFO L226 Difference]: Without dead ends: 6129 [2021-12-21 17:19:00,947 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 [2021-12-21 17:19:00,948 INFO L933 BasicCegarLoop]: 2144 mSDtfsCounter, 2946 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3304 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:19:00,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3304 Valid, 4371 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-21 17:19:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2021-12-21 17:19:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 5795. [2021-12-21 17:19:01,205 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) [2021-12-21 17:19:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8119 transitions. [2021-12-21 17:19:01,236 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8119 transitions. Word has length 131 [2021-12-21 17:19:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:01,237 INFO L470 AbstractCegarLoop]: Abstraction has 5795 states and 8119 transitions. [2021-12-21 17:19:01,237 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) [2021-12-21 17:19:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8119 transitions. [2021-12-21 17:19:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-21 17:19:01,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:01,240 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] [2021-12-21 17:19:01,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:19:01,241 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)] === [2021-12-21 17:19:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1281464054, now seen corresponding path program 1 times [2021-12-21 17:19:01,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:01,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620646629] [2021-12-21 17:19:01,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:01,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 17:19:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 17:19:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:19:01,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:01,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620646629] [2021-12-21 17:19:01,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620646629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:01,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:01,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:19:01,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942093457] [2021-12-21 17:19:01,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:01,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:19:01,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:01,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:19:01,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:19:01,573 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) [2021-12-21 17:19:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:04,845 INFO L93 Difference]: Finished difference Result 17345 states and 24344 transitions. [2021-12-21 17:19:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:19:04,845 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 [2021-12-21 17:19:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:04,921 INFO L225 Difference]: With dead ends: 17345 [2021-12-21 17:19:04,922 INFO L226 Difference]: Without dead ends: 11573 [2021-12-21 17:19:04,954 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 [2021-12-21 17:19:04,958 INFO L933 BasicCegarLoop]: 2132 mSDtfsCounter, 2794 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:19:04,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3127 Valid, 4364 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-21 17:19:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2021-12-21 17:19:05,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 10695. [2021-12-21 17:19:05,527 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) [2021-12-21 17:19:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10695 states to 10695 states and 14895 transitions. [2021-12-21 17:19:05,577 INFO L78 Accepts]: Start accepts. Automaton has 10695 states and 14895 transitions. Word has length 131 [2021-12-21 17:19:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:05,577 INFO L470 AbstractCegarLoop]: Abstraction has 10695 states and 14895 transitions. [2021-12-21 17:19:05,578 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) [2021-12-21 17:19:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10695 states and 14895 transitions. [2021-12-21 17:19:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-21 17:19:05,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:05,582 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] [2021-12-21 17:19:05,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:19:05,582 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)] === [2021-12-21 17:19:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1749869785, now seen corresponding path program 1 times [2021-12-21 17:19:05,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:05,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511848124] [2021-12-21 17:19:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:05,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:19:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:19:05,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:05,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511848124] [2021-12-21 17:19:05,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511848124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:05,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:05,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 17:19:05,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640142735] [2021-12-21 17:19:05,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:05,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 17:19:05,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:05,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 17:19:05,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:19:05,911 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) [2021-12-21 17:19:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:11,748 INFO L93 Difference]: Finished difference Result 25813 states and 36036 transitions. [2021-12-21 17:19:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:19:11,749 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 [2021-12-21 17:19:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:11,845 INFO L225 Difference]: With dead ends: 25813 [2021-12-21 17:19:11,846 INFO L226 Difference]: Without dead ends: 15141 [2021-12-21 17:19:11,903 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 [2021-12-21 17:19:11,904 INFO L933 BasicCegarLoop]: 2342 mSDtfsCounter, 5662 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 2385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6213 SdHoareTripleChecker+Valid, 5988 SdHoareTripleChecker+Invalid, 6769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2385 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:19:11,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6213 Valid, 5988 Invalid, 6769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2385 Valid, 4384 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-21 17:19:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15141 states. [2021-12-21 17:19:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15141 to 13422. [2021-12-21 17:19:12,514 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) [2021-12-21 17:19:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 18467 transitions. [2021-12-21 17:19:12,576 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 18467 transitions. Word has length 137 [2021-12-21 17:19:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:12,576 INFO L470 AbstractCegarLoop]: Abstraction has 13422 states and 18467 transitions. [2021-12-21 17:19:12,577 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) [2021-12-21 17:19:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 18467 transitions. [2021-12-21 17:19:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-21 17:19:12,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:12,579 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] [2021-12-21 17:19:12,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:19:12,580 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)] === [2021-12-21 17:19:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2069662804, now seen corresponding path program 1 times [2021-12-21 17:19:12,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:12,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378570394] [2021-12-21 17:19:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:12,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 17:19:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:19:12,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:12,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378570394] [2021-12-21 17:19:12,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378570394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:12,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:12,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:19:12,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835242412] [2021-12-21 17:19:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:12,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:19:12,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:19:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:19:12,861 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) [2021-12-21 17:19:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:16,035 INFO L93 Difference]: Finished difference Result 37638 states and 52173 transitions. [2021-12-21 17:19:16,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:19:16,036 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 [2021-12-21 17:19:16,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:16,177 INFO L225 Difference]: With dead ends: 37638 [2021-12-21 17:19:16,177 INFO L226 Difference]: Without dead ends: 24239 [2021-12-21 17:19:16,239 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 [2021-12-21 17:19:16,240 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 2770 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 4310 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 [2021-12-21 17:19:16,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3108 Valid, 4310 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-21 17:19:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24239 states. [2021-12-21 17:19:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24239 to 21660. [2021-12-21 17:19:17,050 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) [2021-12-21 17:19:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21660 states to 21660 states and 29748 transitions. [2021-12-21 17:19:17,152 INFO L78 Accepts]: Start accepts. Automaton has 21660 states and 29748 transitions. Word has length 140 [2021-12-21 17:19:17,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:17,154 INFO L470 AbstractCegarLoop]: Abstraction has 21660 states and 29748 transitions. [2021-12-21 17:19:17,155 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) [2021-12-21 17:19:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 21660 states and 29748 transitions. [2021-12-21 17:19:17,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-21 17:19:17,158 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:17,158 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] [2021-12-21 17:19:17,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:19:17,159 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)] === [2021-12-21 17:19:17,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:17,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1823542494, now seen corresponding path program 1 times [2021-12-21 17:19:17,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:17,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432207912] [2021-12-21 17:19:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:17,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:19:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:19:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 17:19:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 17:19:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-12-21 17:19:17,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:17,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432207912] [2021-12-21 17:19:17,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432207912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:17,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:17,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:19:17,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981926555] [2021-12-21 17:19:17,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:17,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:19:17,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:19:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:19:17,446 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) [2021-12-21 17:19:21,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:21,278 INFO L93 Difference]: Finished difference Result 68618 states and 95070 transitions. [2021-12-21 17:19:21,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:19:21,279 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 [2021-12-21 17:19:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:21,668 INFO L225 Difference]: With dead ends: 68618 [2021-12-21 17:19:21,668 INFO L226 Difference]: Without dead ends: 46981 [2021-12-21 17:19:21,753 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 [2021-12-21 17:19:21,756 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 2957 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 1344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:19:21,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3330 Valid, 4708 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1344 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-21 17:19:21,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46981 states. [2021-12-21 17:19:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46981 to 41883. [2021-12-21 17:19:23,193 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) [2021-12-21 17:19:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41883 states to 41883 states and 57547 transitions. [2021-12-21 17:19:23,406 INFO L78 Accepts]: Start accepts. Automaton has 41883 states and 57547 transitions. Word has length 154 [2021-12-21 17:19:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:23,407 INFO L470 AbstractCegarLoop]: Abstraction has 41883 states and 57547 transitions. [2021-12-21 17:19:23,408 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) [2021-12-21 17:19:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 41883 states and 57547 transitions. [2021-12-21 17:19:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-21 17:19:23,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:23,411 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] [2021-12-21 17:19:23,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:19:23,411 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)] === [2021-12-21 17:19:23,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:23,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1687788886, now seen corresponding path program 1 times [2021-12-21 17:19:23,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:23,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299522294] [2021-12-21 17:19:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:23,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:19:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:19:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 17:19:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:19:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 17:19:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 17:19:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:19:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-21 17:19:23,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:23,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299522294] [2021-12-21 17:19:23,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299522294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:23,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:23,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:19:23,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137330539] [2021-12-21 17:19:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:23,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:19:23,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:19:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:19:23,948 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) [2021-12-21 17:19:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:19:28,644 INFO L93 Difference]: Finished difference Result 135539 states and 190094 transitions. [2021-12-21 17:19:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:19:28,647 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 [2021-12-21 17:19:28,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:19:29,217 INFO L225 Difference]: With dead ends: 135539 [2021-12-21 17:19:29,218 INFO L226 Difference]: Without dead ends: 93735 [2021-12-21 17:19:29,556 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 [2021-12-21 17:19:29,557 INFO L933 BasicCegarLoop]: 3128 mSDtfsCounter, 2532 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 1214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 5754 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1214 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:19:29,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 5754 Invalid, 2764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1214 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-21 17:19:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93735 states. [2021-12-21 17:19:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93735 to 83661. [2021-12-21 17:19:32,341 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) [2021-12-21 17:19:33,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83661 states to 83661 states and 115035 transitions. [2021-12-21 17:19:33,228 INFO L78 Accepts]: Start accepts. Automaton has 83661 states and 115035 transitions. Word has length 189 [2021-12-21 17:19:33,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:19:33,229 INFO L470 AbstractCegarLoop]: Abstraction has 83661 states and 115035 transitions. [2021-12-21 17:19:33,230 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) [2021-12-21 17:19:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 83661 states and 115035 transitions. [2021-12-21 17:19:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-21 17:19:33,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:19:33,233 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] [2021-12-21 17:19:33,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:19:33,233 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)] === [2021-12-21 17:19:33,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:19:33,233 INFO L85 PathProgramCache]: Analyzing trace with hash 920998572, now seen corresponding path program 1 times [2021-12-21 17:19:33,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:19:33,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143030641] [2021-12-21 17:19:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:19:33,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:19:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:19:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:19:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:19:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:19:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:19:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:19:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:19:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:19:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:19:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:19:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:19:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:19:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 17:19:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:19:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:19:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 17:19:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 17:19:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:19:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:19:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-21 17:19:33,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:19:33,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143030641] [2021-12-21 17:19:33,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143030641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:19:33,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:19:33,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:19:33,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313344849] [2021-12-21 17:19:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:19:33,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:19:33,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:19:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:19:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:19:33,493 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)