./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 eb692b52 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-?-eb692b5 [2022-07-20 03:05:16,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:05:16,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:05:16,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:05:16,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:05:16,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:05:16,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:05:16,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:05:16,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:05:16,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:05:16,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:05:16,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:05:16,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:05:16,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:05:16,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:05:16,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:05:16,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:05:16,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:05:16,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:05:16,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:05:16,801 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:05:16,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:05:16,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:05:16,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:05:16,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:05:16,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:05:16,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:05:16,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:05:16,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:05:16,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:05:16,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:05:16,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:05:16,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:05:16,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:05:16,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:05:16,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:05:16,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:05:16,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:05:16,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:05:16,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:05:16,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:05:16,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:05:16,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 03:05:16,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:05:16,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:05:16,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:05:16,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:05:16,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:05:16,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:05:16,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:05:16,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:05:16,852 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:05:16,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:05:16,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 03:05:16,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:05:16,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:05:16,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:05:16,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:05:16,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:05:16,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:05:16,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:05:16,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:05:16,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:05:16,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:05:16,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:05:16,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:05:16,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:05:16,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:05:16,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 03:05:16,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 03:05:16,856 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:05:16,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:05:16,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:05:16,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2022-07-20 03:05:17,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:05:17,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:05:17,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:05:17,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:05:17,114 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:05:17,115 INFO L432 ainManager$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 [2022-07-20 03:05:17,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186b1386b/2c9d60862e4047bcb16632651ff3416e/FLAGcba40628f [2022-07-20 03:05:17,945 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:05:17,946 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 [2022-07-20 03:05:18,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186b1386b/2c9d60862e4047bcb16632651ff3416e/FLAGcba40628f [2022-07-20 03:05:18,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186b1386b/2c9d60862e4047bcb16632651ff3416e [2022-07-20 03:05:18,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:05:18,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:05:18,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:05:18,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:05:18,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:05:18,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:05:18" (1/1) ... [2022-07-20 03:05:18,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d82ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:18, skipping insertion in model container [2022-07-20 03:05:18,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:05:18" (1/1) ... [2022-07-20 03:05:18,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:05:18,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:05:21,189 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] [2022-07-20 03:05:21,193 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] [2022-07-20 03:05:21,194 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] [2022-07-20 03:05:21,195 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] [2022-07-20 03:05:21,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:05:21,341 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:05:21,813 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] [2022-07-20 03:05:21,813 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] [2022-07-20 03:05:21,814 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] [2022-07-20 03:05:21,815 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] [2022-07-20 03:05:21,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:05:22,011 INFO L208 MainTranslator]: Completed translation [2022-07-20 03:05:22,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22 WrapperNode [2022-07-20 03:05:22,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 03:05:22,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 03:05:22,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 03:05:22,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 03:05:22,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,276 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4121 [2022-07-20 03:05:22,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 03:05:22,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 03:05:22,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 03:05:22,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 03:05:22,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 03:05:22,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 03:05:22,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 03:05:22,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 03:05:22,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (1/1) ... [2022-07-20 03:05:22,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:05:22,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 03:05:22,537 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) [2022-07-20 03:05:22,630 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 [2022-07-20 03:05:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 03:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 03:05:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 03:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 03:05:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 03:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 03:05:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 03:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 03:05:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 03:05:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 03:05:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:05:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:05:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 03:05:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 03:05:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 03:05:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 03:05:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 03:05:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 03:05:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 03:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 03:05:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-20 03:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-20 03:05:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2022-07-20 03:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2022-07-20 03:05:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 03:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 03:05:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 03:05:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 03:05:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 03:05:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 03:05:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 03:05:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 03:05:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 03:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 03:05:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 03:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 03:05:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-20 03:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-20 03:05:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 03:05:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2022-07-20 03:05:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2022-07-20 03:05:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 03:05:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 03:05:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 03:05:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 03:05:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 03:05:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 03:05:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 03:05:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 03:05:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2022-07-20 03:05:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2022-07-20 03:05:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-20 03:05:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-20 03:05:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 03:05:22,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-20 03:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-20 03:05:22,660 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 03:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 03:05:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 03:05:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 03:05:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 03:05:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 03:05:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 03:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 03:05:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 03:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 03:05:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 03:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 03:05:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 03:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 03:05:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-20 03:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-20 03:05:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:05:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2022-07-20 03:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2022-07-20 03:05:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 03:05:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 03:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 03:05:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 03:05:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 03:05:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 03:05:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-20 03:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-20 03:05:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 03:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 03:05:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 03:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 03:05:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 03:05:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:05:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 03:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 03:05:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 03:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 03:05:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 03:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 03:05:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 03:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 03:05:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-20 03:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-20 03:05:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 03:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 03:05:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2022-07-20 03:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2022-07-20 03:05:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2022-07-20 03:05:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2022-07-20 03:05:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 03:05:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 03:05:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 03:05:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 03:05:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:05:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:05:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 03:05:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 03:05:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-20 03:05:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-20 03:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 03:05:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 03:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 03:05:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 03:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-20 03:05:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-20 03:05:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 03:05:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 03:05:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 03:05:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 03:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-20 03:05:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-20 03:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-20 03:05:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-20 03:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 03:05:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 03:05:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 03:05:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 03:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 03:05:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 03:05:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 03:05:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 03:05:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2022-07-20 03:05:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2022-07-20 03:05:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 03:05:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 03:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2022-07-20 03:05:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2022-07-20 03:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-20 03:05:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-20 03:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2022-07-20 03:05:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2022-07-20 03:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-20 03:05:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-20 03:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 03:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 03:05:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 03:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-20 03:05:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-20 03:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2022-07-20 03:05:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2022-07-20 03:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 03:05:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 03:05:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-20 03:05:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-20 03:05:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 03:05:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 03:05:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2022-07-20 03:05:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2022-07-20 03:05:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 03:05:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 03:05:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 03:05:23,481 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 03:05:23,486 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 03:05:23,939 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 03:05:25,639 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 03:05:25,883 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 03:05:25,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 03:05:25,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 03:05:25,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:05:25 BoogieIcfgContainer [2022-07-20 03:05:25,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 03:05:25,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 03:05:25,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 03:05:25,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 03:05:25,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:05:18" (1/3) ... [2022-07-20 03:05:25,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c902e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:05:25, skipping insertion in model container [2022-07-20 03:05:25,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:05:22" (2/3) ... [2022-07-20 03:05:25,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c902e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:05:25, skipping insertion in model container [2022-07-20 03:05:25,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:05:25" (3/3) ... [2022-07-20 03:05:25,922 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-20 03:05:25,933 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 03:05:25,933 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 03:05:25,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 03:05:26,001 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5985a18b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24fa0748 [2022-07-20 03:05:26,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 03:05:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 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) [2022-07-20 03:05:26,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-20 03:05:26,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:26,028 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:26,028 INFO L420 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)] === [2022-07-20 03:05:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:26,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1886584523, now seen corresponding path program 1 times [2022-07-20 03:05:26,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:26,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168416814] [2022-07-20 03:05:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:26,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 03:05:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-20 03:05:26,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:26,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168416814] [2022-07-20 03:05:26,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168416814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:26,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:26,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:26,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359476921] [2022-07-20 03:05:26,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:26,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:26,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:26,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:26,810 INFO L87 Difference]: Start difference. First operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 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) [2022-07-20 03:05:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:30,323 INFO L93 Difference]: Finished difference Result 4680 states and 6784 transitions. [2022-07-20 03:05:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:05:30,326 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 [2022-07-20 03:05:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:30,384 INFO L225 Difference]: With dead ends: 4680 [2022-07-20 03:05:30,384 INFO L226 Difference]: Without dead ends: 3172 [2022-07-20 03:05:30,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:05:30,404 INFO L413 NwaCegarLoop]: 2173 mSDtfsCounter, 3026 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:30,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 4052 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1319 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-20 03:05:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-07-20 03:05:30,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2898. [2022-07-20 03:05:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2017 states have (on average 1.2850768468021814) internal successors, (2592), 2062 states have internal predecessors, (2592), 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) [2022-07-20 03:05:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 4040 transitions. [2022-07-20 03:05:30,721 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 4040 transitions. Word has length 127 [2022-07-20 03:05:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:30,723 INFO L495 AbstractCegarLoop]: Abstraction has 2898 states and 4040 transitions. [2022-07-20 03:05:30,724 INFO L496 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) [2022-07-20 03:05:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 4040 transitions. [2022-07-20 03:05:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-20 03:05:30,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:30,736 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:30,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 03:05:30,737 INFO L420 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)] === [2022-07-20 03:05:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1832228625, now seen corresponding path program 1 times [2022-07-20 03:05:30,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:30,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641126871] [2022-07-20 03:05:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:30,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 03:05:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-20 03:05:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-20 03:05:31,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:31,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641126871] [2022-07-20 03:05:31,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641126871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:31,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:31,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:31,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405567104] [2022-07-20 03:05:31,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:31,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:31,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:31,101 INFO L87 Difference]: Start difference. First operand 2898 states and 4040 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) [2022-07-20 03:05:34,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:34,307 INFO L93 Difference]: Finished difference Result 9088 states and 12775 transitions. [2022-07-20 03:05:34,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:05:34,308 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 [2022-07-20 03:05:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:34,349 INFO L225 Difference]: With dead ends: 9088 [2022-07-20 03:05:34,349 INFO L226 Difference]: Without dead ends: 6213 [2022-07-20 03:05:34,364 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:05:34,365 INFO L413 NwaCegarLoop]: 2176 mSDtfsCounter, 3036 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:34,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 4114 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-20 03:05:34,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2022-07-20 03:05:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 5879. [2022-07-20 03:05:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 4126 states have (on average 1.2910809500727096) internal successors, (5327), 4230 states have internal predecessors, (5327), 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) [2022-07-20 03:05:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8239 transitions. [2022-07-20 03:05:34,654 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8239 transitions. Word has length 131 [2022-07-20 03:05:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:34,655 INFO L495 AbstractCegarLoop]: Abstraction has 5879 states and 8239 transitions. [2022-07-20 03:05:34,656 INFO L496 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) [2022-07-20 03:05:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8239 transitions. [2022-07-20 03:05:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-20 03:05:34,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:34,658 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:34,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 03:05:34,659 INFO L420 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)] === [2022-07-20 03:05:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash -40411670, now seen corresponding path program 1 times [2022-07-20 03:05:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:34,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430052970] [2022-07-20 03:05:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:34,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 03:05:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-20 03:05:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-20 03:05:34,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:34,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430052970] [2022-07-20 03:05:34,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430052970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:34,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:34,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377261283] [2022-07-20 03:05:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:34,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:34,905 INFO L87 Difference]: Start difference. First operand 5879 states and 8239 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) [2022-07-20 03:05:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:37,902 INFO L93 Difference]: Finished difference Result 17597 states and 24704 transitions. [2022-07-20 03:05:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:05:37,903 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 [2022-07-20 03:05:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:37,982 INFO L225 Difference]: With dead ends: 17597 [2022-07-20 03:05:37,982 INFO L226 Difference]: Without dead ends: 11741 [2022-07-20 03:05:38,015 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:05:38,018 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 2876 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 1327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:38,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3208 Valid, 4180 Invalid, 3040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1327 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-20 03:05:38,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11741 states. [2022-07-20 03:05:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11741 to 10863. [2022-07-20 03:05:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 7594 states have (on average 1.2845667632341322) internal successors, (9755), 7790 states have internal predecessors, (9755), 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) [2022-07-20 03:05:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 15135 transitions. [2022-07-20 03:05:38,584 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 15135 transitions. Word has length 131 [2022-07-20 03:05:38,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:38,585 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 15135 transitions. [2022-07-20 03:05:38,586 INFO L496 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) [2022-07-20 03:05:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 15135 transitions. [2022-07-20 03:05:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-20 03:05:38,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:38,589 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:38,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 03:05:38,590 INFO L420 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)] === [2022-07-20 03:05:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1974085133, now seen corresponding path program 1 times [2022-07-20 03:05:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:38,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565024031] [2022-07-20 03:05:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 03:05:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-20 03:05:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:38,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565024031] [2022-07-20 03:05:38,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565024031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:38,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:38,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 03:05:38,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11384649] [2022-07-20 03:05:38,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:38,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 03:05:38,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:38,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 03:05:38,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:05:38,890 INFO L87 Difference]: Start difference. First operand 10863 states and 15135 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) [2022-07-20 03:05:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:44,407 INFO L93 Difference]: Finished difference Result 26110 states and 36461 transitions. [2022-07-20 03:05:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 03:05:44,408 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 [2022-07-20 03:05:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:44,488 INFO L225 Difference]: With dead ends: 26110 [2022-07-20 03:05:44,488 INFO L226 Difference]: Without dead ends: 15270 [2022-07-20 03:05:44,540 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:05:44,542 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 7676 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 4319 mSolverCounterSat, 3643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8228 SdHoareTripleChecker+Valid, 5013 SdHoareTripleChecker+Invalid, 7962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 4319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:44,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8228 Valid, 5013 Invalid, 7962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3643 Valid, 4319 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-20 03:05:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2022-07-20 03:05:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13551. [2022-07-20 03:05:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 9632 states have (on average 1.288828903654485) internal successors, (12414), 9865 states have internal predecessors, (12414), 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) [2022-07-20 03:05:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 18652 transitions. [2022-07-20 03:05:45,259 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 18652 transitions. Word has length 137 [2022-07-20 03:05:45,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:45,261 INFO L495 AbstractCegarLoop]: Abstraction has 13551 states and 18652 transitions. [2022-07-20 03:05:45,261 INFO L496 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) [2022-07-20 03:05:45,261 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 18652 transitions. [2022-07-20 03:05:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-20 03:05:45,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:45,264 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:45,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 03:05:45,265 INFO L420 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)] === [2022-07-20 03:05:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:45,266 INFO L85 PathProgramCache]: Analyzing trace with hash 166037984, now seen corresponding path program 1 times [2022-07-20 03:05:45,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:45,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103133415] [2022-07-20 03:05:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:45,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 03:05:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-20 03:05:45,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:45,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103133415] [2022-07-20 03:05:45,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103133415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:45,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:45,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950152378] [2022-07-20 03:05:45,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:45,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:45,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:45,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:45,503 INFO L87 Difference]: Start difference. First operand 13551 states and 18652 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) [2022-07-20 03:05:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:48,572 INFO L93 Difference]: Finished difference Result 38016 states and 52715 transitions. [2022-07-20 03:05:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:05:48,573 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 [2022-07-20 03:05:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:48,690 INFO L225 Difference]: With dead ends: 38016 [2022-07-20 03:05:48,690 INFO L226 Difference]: Without dead ends: 24488 [2022-07-20 03:05:48,735 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:05:48,736 INFO L413 NwaCegarLoop]: 2145 mSDtfsCounter, 2858 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:48,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 4043 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 03:05:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24488 states. [2022-07-20 03:05:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24488 to 21909. [2022-07-20 03:05:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21909 states, 15452 states have (on average 1.2848822158943827) internal successors, (19854), 15829 states have internal predecessors, (19854), 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) [2022-07-20 03:05:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21909 states to 21909 states and 30105 transitions. [2022-07-20 03:05:49,614 INFO L78 Accepts]: Start accepts. Automaton has 21909 states and 30105 transitions. Word has length 140 [2022-07-20 03:05:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:49,614 INFO L495 AbstractCegarLoop]: Abstraction has 21909 states and 30105 transitions. [2022-07-20 03:05:49,615 INFO L496 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) [2022-07-20 03:05:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 21909 states and 30105 transitions. [2022-07-20 03:05:49,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-20 03:05:49,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:49,618 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:49,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 03:05:49,618 INFO L420 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)] === [2022-07-20 03:05:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:49,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1581152686, now seen corresponding path program 1 times [2022-07-20 03:05:49,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:49,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371689085] [2022-07-20 03:05:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:49,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:05:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 03:05:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 03:05:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 03:05:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-20 03:05:49,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:49,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371689085] [2022-07-20 03:05:49,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371689085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:49,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:49,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:49,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686269013] [2022-07-20 03:05:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:49,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:49,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:49,874 INFO L87 Difference]: Start difference. First operand 21909 states and 30105 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) [2022-07-20 03:05:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:05:53,667 INFO L93 Difference]: Finished difference Result 69347 states and 96115 transitions. [2022-07-20 03:05:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:05:53,669 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 [2022-07-20 03:05:53,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:05:53,953 INFO L225 Difference]: With dead ends: 69347 [2022-07-20 03:05:53,954 INFO L226 Difference]: Without dead ends: 47461 [2022-07-20 03:05:54,179 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:05:54,181 INFO L413 NwaCegarLoop]: 2360 mSDtfsCounter, 3047 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-20 03:05:54,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 4432 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1346 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-20 03:05:54,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47461 states. [2022-07-20 03:05:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47461 to 42363. [2022-07-20 03:05:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2851013909837439) internal successors, (38341), 30611 states have internal predecessors, (38341), 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) [2022-07-20 03:05:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 58235 transitions. [2022-07-20 03:05:55,919 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 58235 transitions. Word has length 154 [2022-07-20 03:05:55,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:05:55,920 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 58235 transitions. [2022-07-20 03:05:55,920 INFO L496 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) [2022-07-20 03:05:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 58235 transitions. [2022-07-20 03:05:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 03:05:55,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:05:55,923 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:05:55,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 03:05:55,923 INFO L420 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)] === [2022-07-20 03:05:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:05:55,924 INFO L85 PathProgramCache]: Analyzing trace with hash -648134910, now seen corresponding path program 1 times [2022-07-20 03:05:55,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:05:55,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327771433] [2022-07-20 03:05:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:05:55,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:05:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:05:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:05:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:05:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:05:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:05:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:05:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:05:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:05:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:05:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:05:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:05:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 03:05:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 03:05:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 03:05:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:05:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 03:05:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 03:05:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 03:05:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:05:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-20 03:05:56,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:05:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327771433] [2022-07-20 03:05:56,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327771433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:05:56,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:05:56,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:05:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331289256] [2022-07-20 03:05:56,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:05:56,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:05:56,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:05:56,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:05:56,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:05:56,420 INFO L87 Difference]: Start difference. First operand 42363 states and 58235 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) [2022-07-20 03:06:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:01,142 INFO L93 Difference]: Finished difference Result 136979 states and 192158 transitions. [2022-07-20 03:06:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:06:01,143 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 [2022-07-20 03:06:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:02,011 INFO L225 Difference]: With dead ends: 136979 [2022-07-20 03:06:02,012 INFO L226 Difference]: Without dead ends: 94695 [2022-07-20 03:06:02,224 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:06:02,225 INFO L413 NwaCegarLoop]: 3189 mSDtfsCounter, 2586 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1222 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:02,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2960 Valid, 5515 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1222 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 03:06:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94695 states. [2022-07-20 03:06:05,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94695 to 84621. [2022-07-20 03:06:05,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84621 states, 59595 states have (on average 1.2736135581844115) internal successors, (75901), 61145 states have internal predecessors, (75901), 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) [2022-07-20 03:06:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84621 states to 84621 states and 116411 transitions. [2022-07-20 03:06:06,244 INFO L78 Accepts]: Start accepts. Automaton has 84621 states and 116411 transitions. Word has length 189 [2022-07-20 03:06:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:06:06,245 INFO L495 AbstractCegarLoop]: Abstraction has 84621 states and 116411 transitions. [2022-07-20 03:06:06,245 INFO L496 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) [2022-07-20 03:06:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 84621 states and 116411 transitions. [2022-07-20 03:06:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 03:06:06,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:06:06,249 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:06:06,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 03:06:06,250 INFO L420 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)] === [2022-07-20 03:06:06,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:06:06,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1960652548, now seen corresponding path program 1 times [2022-07-20 03:06:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:06:06,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411283762] [2022-07-20 03:06:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:06:06,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:06:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:06:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:06:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:06:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:06:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:06:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:06:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:06:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:06:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:06:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:06:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:06:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 03:06:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 03:06:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 03:06:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 03:06:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 03:06:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 03:06:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-20 03:06:06,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:06:06,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411283762] [2022-07-20 03:06:06,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411283762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:06:06,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:06:06,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:06:06,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216005909] [2022-07-20 03:06:06,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:06:06,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:06:06,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:06:06,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:06:06,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:06:06,553 INFO L87 Difference]: Start difference. First operand 84621 states and 116411 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) [2022-07-20 03:06:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:09,675 INFO L93 Difference]: Finished difference Result 131929 states and 181425 transitions. [2022-07-20 03:06:09,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:06:09,676 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 [2022-07-20 03:06:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:10,048 INFO L225 Difference]: With dead ends: 131929 [2022-07-20 03:06:10,048 INFO L226 Difference]: Without dead ends: 47387 [2022-07-20 03:06:10,280 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:06:10,281 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 2350 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2665 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-20 03:06:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47387 states. [2022-07-20 03:06:11,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47387 to 42363. [2022-07-20 03:06:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2600301659125188) internal successors, (37593), 30611 states have internal predecessors, (37593), 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) [2022-07-20 03:06:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 57487 transitions. [2022-07-20 03:06:11,880 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 57487 transitions. Word has length 189 [2022-07-20 03:06:11,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:06:11,881 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 57487 transitions. [2022-07-20 03:06:11,881 INFO L496 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) [2022-07-20 03:06:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 57487 transitions. [2022-07-20 03:06:11,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 03:06:11,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:06:11,884 INFO L195 NwaCegarLoop]: 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] [2022-07-20 03:06:11,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 03:06:11,884 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:06:11,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:06:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1906259650, now seen corresponding path program 1 times [2022-07-20 03:06:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:06:11,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147634797] [2022-07-20 03:06:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:06:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:06:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:06:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:06:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:06:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:06:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:06:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:06:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:06:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:06:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:06:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:06:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:06:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 03:06:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 03:06:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 03:06:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 03:06:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 03:06:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 03:06:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-20 03:06:12,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:06:12,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147634797] [2022-07-20 03:06:12,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147634797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:06:12,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:06:12,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:06:12,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293287044] [2022-07-20 03:06:12,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:06:12,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:06:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:06:12,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:06:12,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:06:12,154 INFO L87 Difference]: Start difference. First operand 42363 states and 57487 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) [2022-07-20 03:06:14,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:14,967 INFO L93 Difference]: Finished difference Result 89623 states and 122405 transitions. [2022-07-20 03:06:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:06:14,967 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 [2022-07-20 03:06:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:15,215 INFO L225 Difference]: With dead ends: 89623 [2022-07-20 03:06:15,216 INFO L226 Difference]: Without dead ends: 47339 [2022-07-20 03:06:15,522 INFO L412 NwaCegarLoop]: 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 [2022-07-20 03:06:15,523 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 2345 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:15,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 2644 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 03:06:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47339 states. [2022-07-20 03:06:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47339 to 42315. [2022-07-20 03:06:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42315 states, 29787 states have (on average 1.2540034243126197) internal successors, (37353), 30563 states have internal predecessors, (37353), 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) [2022-07-20 03:06:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42315 states to 42315 states and 57247 transitions. [2022-07-20 03:06:17,148 INFO L78 Accepts]: Start accepts. Automaton has 42315 states and 57247 transitions. Word has length 189 [2022-07-20 03:06:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:06:17,149 INFO L495 AbstractCegarLoop]: Abstraction has 42315 states and 57247 transitions. [2022-07-20 03:06:17,149 INFO L496 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) [2022-07-20 03:06:17,149 INFO L276 IsEmpty]: Start isEmpty. Operand 42315 states and 57247 transitions. [2022-07-20 03:06:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-20 03:06:17,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:06:17,153 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2022-07-20 03:06:17,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 03:06:17,154 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:06:17,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:06:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash 611798263, now seen corresponding path program 1 times [2022-07-20 03:06:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:06:17,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989095381] [2022-07-20 03:06:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:06:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:06:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:06:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:06:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:06:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:06:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:06:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:06:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:06:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:06:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:06:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:06:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:06:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 03:06:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 03:06:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 03:06:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 03:06:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 03:06:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 03:06:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-20 03:06:17,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:06:17,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989095381] [2022-07-20 03:06:17,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989095381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:06:17,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:06:17,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:06:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709291793] [2022-07-20 03:06:17,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:06:17,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:06:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:06:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:06:17,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:06:17,448 INFO L87 Difference]: Start difference. First operand 42315 states and 57247 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-07-20 03:06:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:22,574 INFO L93 Difference]: Finished difference Result 133613 states and 182465 transitions. [2022-07-20 03:06:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:06:22,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 192 [2022-07-20 03:06:22,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:23,048 INFO L225 Difference]: With dead ends: 133613 [2022-07-20 03:06:23,048 INFO L226 Difference]: Without dead ends: 91377 [2022-07-20 03:06:23,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:06:23,391 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 2729 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 5320 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:23,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 5320 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 03:06:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-20 03:06:26,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81325. [2022-07-20 03:06:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81325 states, 57323 states have (on average 1.254662177485477) internal successors, (71921), 58649 states have internal predecessors, (71921), 18954 states have call successors, (18954), 5158 states have call predecessors, (18954), 5045 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-20 03:06:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81325 states to 81325 states and 109933 transitions. [2022-07-20 03:06:26,640 INFO L78 Accepts]: Start accepts. Automaton has 81325 states and 109933 transitions. Word has length 192 [2022-07-20 03:06:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:06:26,640 INFO L495 AbstractCegarLoop]: Abstraction has 81325 states and 109933 transitions. [2022-07-20 03:06:26,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-07-20 03:06:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 81325 states and 109933 transitions. [2022-07-20 03:06:26,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-20 03:06:26,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:06:26,643 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2022-07-20 03:06:26,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 03:06:26,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:06:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:06:26,644 INFO L85 PathProgramCache]: Analyzing trace with hash 752346873, now seen corresponding path program 1 times [2022-07-20 03:06:26,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:06:26,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155438675] [2022-07-20 03:06:26,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:06:26,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:06:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:06:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:06:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:06:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:06:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:06:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:06:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:06:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:06:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:06:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:06:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:06:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 03:06:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 03:06:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 03:06:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 03:06:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 03:06:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 03:06:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-20 03:06:27,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:06:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155438675] [2022-07-20 03:06:27,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155438675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:06:27,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:06:27,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 03:06:27,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326610930] [2022-07-20 03:06:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:06:27,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 03:06:27,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:06:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 03:06:27,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 03:06:27,019 INFO L87 Difference]: Start difference. First operand 81325 states and 109933 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 03:06:31,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:31,866 INFO L93 Difference]: Finished difference Result 91379 states and 125075 transitions. [2022-07-20 03:06:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 03:06:31,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2022-07-20 03:06:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:32,416 INFO L225 Difference]: With dead ends: 91379 [2022-07-20 03:06:32,416 INFO L226 Difference]: Without dead ends: 91377 [2022-07-20 03:06:32,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:06:32,464 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 2342 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:32,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 4938 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [979 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-20 03:06:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-20 03:06:35,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81329. [2022-07-20 03:06:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81329 states, 57326 states have (on average 1.2546488504343578) internal successors, (71924), 58652 states have internal predecessors, (71924), 18954 states have call successors, (18954), 5159 states have call predecessors, (18954), 5046 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-20 03:06:35,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81329 states to 81329 states and 109936 transitions. [2022-07-20 03:06:35,622 INFO L78 Accepts]: Start accepts. Automaton has 81329 states and 109936 transitions. Word has length 192 [2022-07-20 03:06:35,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:06:35,623 INFO L495 AbstractCegarLoop]: Abstraction has 81329 states and 109936 transitions. [2022-07-20 03:06:35,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 03:06:35,623 INFO L276 IsEmpty]: Start isEmpty. Operand 81329 states and 109936 transitions. [2022-07-20 03:06:35,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-20 03:06:35,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:06:35,626 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1] [2022-07-20 03:06:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 03:06:35,627 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:06:35,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:06:35,627 INFO L85 PathProgramCache]: Analyzing trace with hash 172767208, now seen corresponding path program 1 times [2022-07-20 03:06:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 03:06:35,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699968316] [2022-07-20 03:06:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:06:35,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 03:06:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 03:06:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 03:06:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 03:06:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 03:06:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 03:06:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 03:06:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 03:06:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 03:06:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 03:06:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 03:06:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 03:06:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 03:06:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 03:06:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 03:06:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 03:06:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 03:06:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 03:06:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 03:06:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 03:06:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:06:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-20 03:06:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 03:06:35,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699968316] [2022-07-20 03:06:35,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699968316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:06:35,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:06:35,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 03:06:35,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13569620] [2022-07-20 03:06:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:06:35,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 03:06:35,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 03:06:35,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 03:06:35,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 03:06:35,911 INFO L87 Difference]: Start difference. First operand 81329 states and 109936 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 03:06:40,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:06:40,598 INFO L93 Difference]: Finished difference Result 91383 states and 125078 transitions. [2022-07-20 03:06:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 03:06:40,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2022-07-20 03:06:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:06:41,075 INFO L225 Difference]: With dead ends: 91383 [2022-07-20 03:06:41,075 INFO L226 Difference]: Without dead ends: 91381 [2022-07-20 03:06:41,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:06:41,117 INFO L413 NwaCegarLoop]: 1907 mSDtfsCounter, 2334 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:06:41,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 4941 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 03:06:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91381 states.