./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:31:15,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:31:15,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:31:15,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:31:15,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:31:15,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:31:15,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:31:15,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:31:15,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:31:15,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:31:15,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:31:15,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:31:15,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:31:15,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:31:15,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:31:15,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:31:15,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:31:15,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:31:15,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:31:15,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:31:15,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:31:15,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:31:15,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:31:15,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:31:15,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:31:15,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:31:15,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:31:15,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:31:15,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:31:15,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:31:15,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:31:15,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:31:15,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:31:15,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:31:15,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:31:15,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:31:15,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:31:15,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:31:15,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:31:15,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:31:15,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:31:15,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:31:15,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:31:15,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:31:15,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:31:15,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:31:15,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:31:15,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:31:15,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:31:15,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:31:15,656 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:31:15,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:31:15,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:31:15,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:31:15,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:31:15,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:31:15,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:31:15,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:31:15,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:31:15,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:31:15,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:31:15,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:31:15,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:31:15,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:31:15,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:31:15,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:31:15,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:31:15,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:31:15,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:31:15,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:31:15,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:31:15,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:31:15,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:31:15,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-12-22 15:31:15,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:31:15,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:31:15,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:31:15,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:31:15,848 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:31:15,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-22 15:31:15,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb5b50e7/de6a738906e54ce89bd4bc39d97ff019/FLAGc8a319476 [2021-12-22 15:31:16,767 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:31:16,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-22 15:31:16,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb5b50e7/de6a738906e54ce89bd4bc39d97ff019/FLAGc8a319476 [2021-12-22 15:31:16,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb5b50e7/de6a738906e54ce89bd4bc39d97ff019 [2021-12-22 15:31:16,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:31:16,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:31:16,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:31:16,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:31:16,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:31:16,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:16" (1/1) ... [2021-12-22 15:31:16,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7934f1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:16, skipping insertion in model container [2021-12-22 15:31:16,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:16" (1/1) ... [2021-12-22 15:31:16,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:31:17,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:31:18,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-12-22 15:31:18,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-12-22 15:31:18,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-12-22 15:31:18,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-12-22 15:31:18,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:31:18,689 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:31:18,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-12-22 15:31:18,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-12-22 15:31:18,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-12-22 15:31:18,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-12-22 15:31:18,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:31:19,038 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:31:19,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19 WrapperNode [2021-12-22 15:31:19,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:31:19,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:31:19,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:31:19,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:31:19,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,268 INFO L137 Inliner]: procedures = 430, calls = 1706, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 4089 [2021-12-22 15:31:19,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:31:19,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:31:19,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:31:19,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:31:19,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:31:19,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:31:19,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:31:19,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:31:19,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (1/1) ... [2021-12-22 15:31:19,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:31:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:31:19,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:31:19,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:31:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 15:31:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 15:31:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:31:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:31:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:31:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:31:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:31:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:31:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:31:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:31:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:31:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:31:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-12-22 15:31:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-12-22 15:31:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:31:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:31:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:31:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:31:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-22 15:31:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-22 15:31:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-12-22 15:31:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-12-22 15:31:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-22 15:31:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-22 15:31:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-22 15:31:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-22 15:31:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 15:31:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 15:31:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-12-22 15:31:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-12-22 15:31:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-22 15:31:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-22 15:31:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:31:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:31:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-22 15:31:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-22 15:31:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-22 15:31:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-22 15:31:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:31:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:31:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:31:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:31:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:31:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:31:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:31:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-12-22 15:31:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-12-22 15:31:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-12-22 15:31:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-12-22 15:31:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:31:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:31:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:31:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:31:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:31:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-12-22 15:31:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-12-22 15:31:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:31:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:31:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:31:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:31:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:31:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:31:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:31:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:31:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:31:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:31:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:31:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:31:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:31:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:31:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-22 15:31:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-22 15:31:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:31:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:31:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:31:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:31:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-12-22 15:31:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-12-22 15:31:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:31:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:31:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-12-22 15:31:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-12-22 15:31:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:31:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:31:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:31:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:31:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:31:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:31:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:31:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:31:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:31:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:31:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:31:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-22 15:31:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-22 15:31:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:31:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:31:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-12-22 15:31:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-12-22 15:31:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:31:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:31:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-22 15:31:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-22 15:31:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:31:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:31:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:31:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:31:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:31:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:31:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-12-22 15:31:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-12-22 15:31:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-12-22 15:31:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-12-22 15:31:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-22 15:31:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-22 15:31:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:31:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:31:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-12-22 15:31:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-12-22 15:31:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 15:31:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 15:31:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:31:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-12-22 15:31:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:31:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-12-22 15:31:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-12-22 15:31:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:31:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:31:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:31:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:31:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:31:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:31:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:31:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:31:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:31:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:31:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-12-22 15:31:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-22 15:31:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:31:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-12-22 15:31:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-12-22 15:31:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-12-22 15:31:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-12-22 15:31:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-12-22 15:31:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-12-22 15:31:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:31:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:31:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:31:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 15:31:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 15:31:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:31:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:31:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:31:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:31:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:31:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:31:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 15:31:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 15:31:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-12-22 15:31:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-12-22 15:31:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-12-22 15:31:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 15:31:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:31:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:31:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:31:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:31:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-22 15:31:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:31:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-12-22 15:31:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-12-22 15:31:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-12-22 15:31:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-22 15:31:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-22 15:31:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-12-22 15:31:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-12-22 15:31:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:31:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:31:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-12-22 15:31:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-12-22 15:31:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-22 15:31:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-22 15:31:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-22 15:31:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-22 15:31:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-22 15:31:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:31:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-12-22 15:31:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-12-22 15:31:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:31:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:31:20,077 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:31:20,079 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:31:20,618 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:31:22,902 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:31:22,947 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:31:22,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:31:22,965 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 15:31:22,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:31:22 BoogieIcfgContainer [2021-12-22 15:31:22,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:31:22,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:31:22,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:31:22,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:31:22,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:31:16" (1/3) ... [2021-12-22 15:31:22,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbe3086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:31:22, skipping insertion in model container [2021-12-22 15:31:22,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:19" (2/3) ... [2021-12-22 15:31:22,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbe3086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:31:22, skipping insertion in model container [2021-12-22 15:31:22,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:31:22" (3/3) ... [2021-12-22 15:31:22,974 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-22 15:31:22,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:31:22,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:31:23,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:31:23,020 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:31:23,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:31:23,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 1682 states, 1129 states have (on average 1.25066430469442) internal successors, (1412), 1164 states have internal predecessors, (1412), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2021-12-22 15:31:23,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-22 15:31:23,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:23,064 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:23,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:23,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:23,068 INFO L85 PathProgramCache]: Analyzing trace with hash -434884534, now seen corresponding path program 1 times [2021-12-22 15:31:23,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:23,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416012799] [2021-12-22 15:31:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:23,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:31:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-22 15:31:23,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:23,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416012799] [2021-12-22 15:31:23,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416012799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:23,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:23,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:23,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945997285] [2021-12-22 15:31:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:23,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:23,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:23,585 INFO L87 Difference]: Start difference. First operand has 1682 states, 1129 states have (on average 1.25066430469442) internal successors, (1412), 1164 states have internal predecessors, (1412), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 15:31:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:26,541 INFO L93 Difference]: Finished difference Result 5034 states and 7130 transitions. [2021-12-22 15:31:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2021-12-22 15:31:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:26,593 INFO L225 Difference]: With dead ends: 5034 [2021-12-22 15:31:26,593 INFO L226 Difference]: Without dead ends: 3363 [2021-12-22 15:31:26,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:26,613 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2956 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 4776 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:26,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3362 Valid, 4776 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1416 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-22 15:31:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2021-12-22 15:31:26,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3223. [2021-12-22 15:31:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2176 states have (on average 1.2440257352941178) internal successors, (2707), 2243 states have internal predecessors, (2707), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2021-12-22 15:31:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4419 transitions. [2021-12-22 15:31:26,820 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4419 transitions. Word has length 116 [2021-12-22 15:31:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:26,821 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 4419 transitions. [2021-12-22 15:31:26,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 15:31:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4419 transitions. [2021-12-22 15:31:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-22 15:31:26,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:26,825 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:26,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:31:26,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash -16530084, now seen corresponding path program 1 times [2021-12-22 15:31:26,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:26,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419884139] [2021-12-22 15:31:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:26,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:31:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:31:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-22 15:31:27,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:27,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419884139] [2021-12-22 15:31:27,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419884139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:27,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:27,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:27,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185794837] [2021-12-22 15:31:27,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:27,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:27,029 INFO L87 Difference]: Start difference. First operand 3223 states and 4419 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 15:31:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:29,683 INFO L93 Difference]: Finished difference Result 9159 states and 12591 transitions. [2021-12-22 15:31:29,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:29,684 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, (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 120 [2021-12-22 15:31:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:29,713 INFO L225 Difference]: With dead ends: 9159 [2021-12-22 15:31:29,713 INFO L226 Difference]: Without dead ends: 5957 [2021-12-22 15:31:29,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:29,728 INFO L933 BasicCegarLoop]: 2428 mSDtfsCounter, 2421 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 1321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1321 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:29,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2754 Valid, 4842 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1321 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 15:31:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-12-22 15:31:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5678. [2021-12-22 15:31:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 3827 states have (on average 1.23281944081526) internal successors, (4718), 3941 states have internal predecessors, (4718), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2021-12-22 15:31:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 7740 transitions. [2021-12-22 15:31:29,928 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 7740 transitions. Word has length 120 [2021-12-22 15:31:29,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:29,929 INFO L470 AbstractCegarLoop]: Abstraction has 5678 states and 7740 transitions. [2021-12-22 15:31:29,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 15:31:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 7740 transitions. [2021-12-22 15:31:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-22 15:31:29,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:29,932 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1] [2021-12-22 15:31:29,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:31:29,933 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:29,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:29,933 INFO L85 PathProgramCache]: Analyzing trace with hash -237511787, now seen corresponding path program 1 times [2021-12-22 15:31:29,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:29,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020912356] [2021-12-22 15:31:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:29,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:31:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:31:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 15:31:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:31:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 15:31:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:31:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-22 15:31:30,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020912356] [2021-12-22 15:31:30,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020912356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:30,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:30,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:31:30,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296044834] [2021-12-22 15:31:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:30,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:31:30,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:31:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:31:30,196 INFO L87 Difference]: Start difference. First operand 5678 states and 7740 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-22 15:31:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:35,223 INFO L93 Difference]: Finished difference Result 15052 states and 20562 transitions. [2021-12-22 15:31:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:31:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2021-12-22 15:31:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:35,269 INFO L225 Difference]: With dead ends: 15052 [2021-12-22 15:31:35,270 INFO L226 Difference]: Without dead ends: 9395 [2021-12-22 15:31:35,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:31:35,301 INFO L933 BasicCegarLoop]: 3244 mSDtfsCounter, 6036 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 4769 mSolverCounterSat, 2863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6726 SdHoareTripleChecker+Valid, 7097 SdHoareTripleChecker+Invalid, 7632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2863 IncrementalHoareTripleChecker+Valid, 4769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:35,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6726 Valid, 7097 Invalid, 7632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2863 Valid, 4769 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-22 15:31:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2021-12-22 15:31:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 8879. [2021-12-22 15:31:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8879 states, 6050 states have (on average 1.2320661157024793) internal successors, (7454), 6220 states have internal predecessors, (7454), 2268 states have call successors, (2268), 570 states have call predecessors, (2268), 558 states have return successors, (2277), 2218 states have call predecessors, (2277), 2264 states have call successors, (2277) [2021-12-22 15:31:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 11999 transitions. [2021-12-22 15:31:35,608 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 11999 transitions. Word has length 165 [2021-12-22 15:31:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:35,608 INFO L470 AbstractCegarLoop]: Abstraction has 8879 states and 11999 transitions. [2021-12-22 15:31:35,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-22 15:31:35,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 11999 transitions. [2021-12-22 15:31:35,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 15:31:35,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:35,613 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:35,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:31:35,613 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1787739659, now seen corresponding path program 1 times [2021-12-22 15:31:35,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:35,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113038430] [2021-12-22 15:31:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:35,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 15:31:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 15:31:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:31:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 15:31:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:31:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 15:31:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:31:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-22 15:31:35,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:35,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113038430] [2021-12-22 15:31:35,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113038430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:35,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:35,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:31:35,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615673200] [2021-12-22 15:31:35,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:35,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:31:35,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:35,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:31:35,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:31:35,963 INFO L87 Difference]: Start difference. First operand 8879 states and 11999 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-22 15:31:38,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:38,524 INFO L93 Difference]: Finished difference Result 21416 states and 29095 transitions. [2021-12-22 15:31:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:31:38,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2021-12-22 15:31:38,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:38,593 INFO L225 Difference]: With dead ends: 21416 [2021-12-22 15:31:38,594 INFO L226 Difference]: Without dead ends: 12558 [2021-12-22 15:31:38,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:38,623 INFO L933 BasicCegarLoop]: 2373 mSDtfsCounter, 2775 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 1429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 4738 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:38,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3161 Valid, 4738 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1429 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 15:31:38,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12558 states. [2021-12-22 15:31:38,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12558 to 11954. [2021-12-22 15:31:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11954 states, 8098 states have (on average 1.2325265497653741) internal successors, (9981), 8346 states have internal predecessors, (9981), 3076 states have call successors, (3076), 800 states have call predecessors, (3076), 777 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-12-22 15:31:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11954 states to 11954 states and 16151 transitions. [2021-12-22 15:31:38,983 INFO L78 Accepts]: Start accepts. Automaton has 11954 states and 16151 transitions. Word has length 167 [2021-12-22 15:31:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:38,984 INFO L470 AbstractCegarLoop]: Abstraction has 11954 states and 16151 transitions. [2021-12-22 15:31:38,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-22 15:31:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 11954 states and 16151 transitions. [2021-12-22 15:31:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-22 15:31:38,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:38,986 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2021-12-22 15:31:38,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:31:38,987 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:38,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash 557013463, now seen corresponding path program 1 times [2021-12-22 15:31:38,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:38,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706603550] [2021-12-22 15:31:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:38,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:31:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:31:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:31:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:31:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:31:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:31:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-22 15:31:39,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:39,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706603550] [2021-12-22 15:31:39,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706603550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:39,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:39,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:39,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021191116] [2021-12-22 15:31:39,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:39,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:39,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:39,351 INFO L87 Difference]: Start difference. First operand 11954 states and 16151 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:31:41,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:41,743 INFO L93 Difference]: Finished difference Result 12535 states and 17058 transitions. [2021-12-22 15:31:41,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:31:41,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2021-12-22 15:31:41,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:41,789 INFO L225 Difference]: With dead ends: 12535 [2021-12-22 15:31:41,790 INFO L226 Difference]: Without dead ends: 12533 [2021-12-22 15:31:41,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:31:41,801 INFO L933 BasicCegarLoop]: 2109 mSDtfsCounter, 2368 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 6086 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:41,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 6086 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 15:31:41,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12533 states. [2021-12-22 15:31:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12533 to 11958. [2021-12-22 15:31:42,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11958 states, 8101 states have (on average 1.2324404394519195) internal successors, (9984), 8349 states have internal predecessors, (9984), 3076 states have call successors, (3076), 801 states have call predecessors, (3076), 778 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-12-22 15:31:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16154 transitions. [2021-12-22 15:31:42,235 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16154 transitions. Word has length 172 [2021-12-22 15:31:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:42,236 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16154 transitions. [2021-12-22 15:31:42,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:31:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16154 transitions. [2021-12-22 15:31:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-22 15:31:42,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:42,239 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2021-12-22 15:31:42,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:31:42,239 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:42,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:42,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1620405938, now seen corresponding path program 1 times [2021-12-22 15:31:42,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:42,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22352492] [2021-12-22 15:31:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:42,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:31:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:31:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:31:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:31:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:31:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:31:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:31:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-22 15:31:42,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:42,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22352492] [2021-12-22 15:31:42,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22352492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:42,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:42,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:42,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703812880] [2021-12-22 15:31:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:42,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:42,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:42,474 INFO L87 Difference]: Start difference. First operand 11958 states and 16154 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-22 15:31:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:44,705 INFO L93 Difference]: Finished difference Result 12539 states and 17061 transitions. [2021-12-22 15:31:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:31:44,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 177 [2021-12-22 15:31:44,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:44,749 INFO L225 Difference]: With dead ends: 12539 [2021-12-22 15:31:44,750 INFO L226 Difference]: Without dead ends: 12537 [2021-12-22 15:31:44,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:31:44,757 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 2360 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:44,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 6093 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 15:31:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12537 states. [2021-12-22 15:31:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12537 to 11962. [2021-12-22 15:31:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 8104 states have (on average 1.2323543928923988) internal successors, (9987), 8352 states have internal predecessors, (9987), 3076 states have call successors, (3076), 802 states have call predecessors, (3076), 779 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-12-22 15:31:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 16157 transitions. [2021-12-22 15:31:45,082 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 16157 transitions. Word has length 177 [2021-12-22 15:31:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:45,083 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 16157 transitions. [2021-12-22 15:31:45,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-22 15:31:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 16157 transitions. [2021-12-22 15:31:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-22 15:31:45,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:45,085 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 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] [2021-12-22 15:31:45,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:31:45,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:45,086 INFO L85 PathProgramCache]: Analyzing trace with hash 290161655, now seen corresponding path program 1 times [2021-12-22 15:31:45,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:45,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647001560] [2021-12-22 15:31:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:45,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:31:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:31:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:31:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:31:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:31:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:31:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:31:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:31:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-12-22 15:31:45,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:45,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647001560] [2021-12-22 15:31:45,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647001560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:45,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:45,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:31:45,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681585607] [2021-12-22 15:31:45,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:45,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:31:45,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:45,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:31:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:31:45,321 INFO L87 Difference]: Start difference. First operand 11962 states and 16157 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-22 15:31:47,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:47,605 INFO L93 Difference]: Finished difference Result 12543 states and 17064 transitions. [2021-12-22 15:31:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:31:47,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 182 [2021-12-22 15:31:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:47,654 INFO L225 Difference]: With dead ends: 12543 [2021-12-22 15:31:47,654 INFO L226 Difference]: Without dead ends: 12541 [2021-12-22 15:31:47,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:31:47,664 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 2360 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:47,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2599 Valid, 6085 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 15:31:47,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2021-12-22 15:31:47,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 11966. [2021-12-22 15:31:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11966 states, 8107 states have (on average 1.2322684100160355) internal successors, (9990), 8355 states have internal predecessors, (9990), 3076 states have call successors, (3076), 803 states have call predecessors, (3076), 780 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-12-22 15:31:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11966 states to 11966 states and 16160 transitions. [2021-12-22 15:31:48,048 INFO L78 Accepts]: Start accepts. Automaton has 11966 states and 16160 transitions. Word has length 182 [2021-12-22 15:31:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:48,048 INFO L470 AbstractCegarLoop]: Abstraction has 11966 states and 16160 transitions. [2021-12-22 15:31:48,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-22 15:31:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 11966 states and 16160 transitions. [2021-12-22 15:31:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-22 15:31:48,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:48,051 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:48,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:31:48,052 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash 507826912, now seen corresponding path program 1 times [2021-12-22 15:31:48,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:48,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086262255] [2021-12-22 15:31:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:48,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:31:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:31:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:31:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:31:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:31:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 15:31:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 15:31:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:31:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:31:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 15:31:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 15:31:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-22 15:31:48,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:48,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086262255] [2021-12-22 15:31:48,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086262255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:48,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:48,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:31:48,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361342092] [2021-12-22 15:31:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:48,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:31:48,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:31:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:48,335 INFO L87 Difference]: Start difference. First operand 11966 states and 16160 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 15:31:56,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:31:56,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:31:56,786 INFO L93 Difference]: Finished difference Result 36161 states and 49121 transitions. [2021-12-22 15:31:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:31:56,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-12-22 15:31:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:31:56,889 INFO L225 Difference]: With dead ends: 36161 [2021-12-22 15:31:56,890 INFO L226 Difference]: Without dead ends: 24291 [2021-12-22 15:31:56,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:31:56,941 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 4321 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 3125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 5892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3125 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:31:56,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4584 Valid, 5006 Invalid, 5892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3125 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-22 15:31:56,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2021-12-22 15:31:57,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 23107. [2021-12-22 15:31:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23107 states, 15682 states have (on average 1.2317306466011988) internal successors, (19316), 16132 states have internal predecessors, (19316), 5908 states have call successors, (5908), 1551 states have call predecessors, (5908), 1514 states have return successors, (5948), 5773 states have call predecessors, (5948), 5904 states have call successors, (5948) [2021-12-22 15:31:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23107 states to 23107 states and 31172 transitions. [2021-12-22 15:31:57,906 INFO L78 Accepts]: Start accepts. Automaton has 23107 states and 31172 transitions. Word has length 199 [2021-12-22 15:31:57,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:31:57,907 INFO L470 AbstractCegarLoop]: Abstraction has 23107 states and 31172 transitions. [2021-12-22 15:31:57,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 15:31:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand 23107 states and 31172 transitions. [2021-12-22 15:31:57,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-22 15:31:57,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:31:57,910 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:31:57,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:31:57,910 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:31:57,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:31:57,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1030513118, now seen corresponding path program 1 times [2021-12-22 15:31:57,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:31:57,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954539120] [2021-12-22 15:31:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:31:57,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:31:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:31:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:31:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:31:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:31:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:31:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:31:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:31:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:31:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:31:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:31:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:31:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:31:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:31:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:31:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:31:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:31:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 15:31:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 15:31:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:31:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:31:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 15:31:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 15:31:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:31:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-22 15:31:58,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:31:58,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954539120] [2021-12-22 15:31:58,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954539120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:31:58,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:31:58,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:31:58,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952208880] [2021-12-22 15:31:58,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:31:58,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:31:58,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:31:58,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:31:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:31:58,128 INFO L87 Difference]: Start difference. First operand 23107 states and 31172 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 15:32:04,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:32:06,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:32:08,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:32:08,465 INFO L93 Difference]: Finished difference Result 58976 states and 79978 transitions. [2021-12-22 15:32:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:32:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-12-22 15:32:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:32:08,670 INFO L225 Difference]: With dead ends: 58976 [2021-12-22 15:32:08,671 INFO L226 Difference]: Without dead ends: 35965 [2021-12-22 15:32:08,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:32:08,728 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 2986 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 2273 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 7412 SdHoareTripleChecker+Invalid, 5231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2273 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:32:08,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3249 Valid, 7412 Invalid, 5231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2273 Valid, 2957 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-12-22 15:32:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-12-22 15:32:09,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34236. [2021-12-22 15:32:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34236 states, 23245 states have (on average 1.2316627231662722) internal successors, (28630), 23897 states have internal predecessors, (28630), 8740 states have call successors, (8740), 2299 states have call predecessors, (8740), 2248 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-12-22 15:32:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 46172 transitions. [2021-12-22 15:32:10,039 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 46172 transitions. Word has length 199 [2021-12-22 15:32:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:32:10,040 INFO L470 AbstractCegarLoop]: Abstraction has 34236 states and 46172 transitions. [2021-12-22 15:32:10,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 15:32:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 46172 transitions. [2021-12-22 15:32:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-22 15:32:10,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:10,043 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 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] [2021-12-22 15:32:10,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:32:10,044 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:32:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash -525210962, now seen corresponding path program 1 times [2021-12-22 15:32:10,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:10,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008061535] [2021-12-22 15:32:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:10,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:32:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:32:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:32:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:32:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:32:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:32:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:32:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:32:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:32:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:32:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:32:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:32:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:32:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:32:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:32:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:32:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:32:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:32:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 15:32:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-22 15:32:10,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:32:10,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008061535] [2021-12-22 15:32:10,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008061535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:32:10,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:32:10,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:32:10,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002743374] [2021-12-22 15:32:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:32:10,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:32:10,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:32:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:32:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:32:10,332 INFO L87 Difference]: Start difference. First operand 34236 states and 46172 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 15:32:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:32:13,472 INFO L93 Difference]: Finished difference Result 35967 states and 48867 transitions. [2021-12-22 15:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:32:13,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2021-12-22 15:32:13,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:32:13,616 INFO L225 Difference]: With dead ends: 35967 [2021-12-22 15:32:13,616 INFO L226 Difference]: Without dead ends: 35965 [2021-12-22 15:32:13,640 INFO L932 BasicCegarLoop]: 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 [2021-12-22 15:32:13,641 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:32:13,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-22 15:32:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-12-22 15:32:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34240. [2021-12-22 15:32:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34240 states, 23248 states have (on average 1.23163282863042) internal successors, (28633), 23900 states have internal predecessors, (28633), 8740 states have call successors, (8740), 2300 states have call predecessors, (8740), 2249 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-12-22 15:32:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34240 states to 34240 states and 46175 transitions. [2021-12-22 15:32:15,077 INFO L78 Accepts]: Start accepts. Automaton has 34240 states and 46175 transitions. Word has length 187 [2021-12-22 15:32:15,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:32:15,078 INFO L470 AbstractCegarLoop]: Abstraction has 34240 states and 46175 transitions. [2021-12-22 15:32:15,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 15:32:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 34240 states and 46175 transitions. [2021-12-22 15:32:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-22 15:32:15,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:15,083 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 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] [2021-12-22 15:32:15,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:32:15,084 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:32:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 129971735, now seen corresponding path program 1 times [2021-12-22 15:32:15,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:15,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547546276] [2021-12-22 15:32:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:15,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:32:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:32:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:32:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:32:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:32:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:32:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:32:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:32:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:32:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:32:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:32:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:32:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:32:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:32:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 15:32:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:32:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:32:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:32:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 15:32:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 15:32:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-12-22 15:32:15,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:32:15,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547546276] [2021-12-22 15:32:15,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547546276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:32:15,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:32:15,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:32:15,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119894964] [2021-12-22 15:32:15,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:32:15,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:32:15,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:32:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:32:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:32:15,351 INFO L87 Difference]: Start difference. First operand 34240 states and 46175 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)