./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 ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-ff03de6 [2021-12-21 17:04:37,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:04:37,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:04:37,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:04:37,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:04:37,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:04:37,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:04:37,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:04:37,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:04:37,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:04:37,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:04:37,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:04:37,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:04:37,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:04:37,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:04:37,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:04:37,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:04:37,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:04:37,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:04:37,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:04:37,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:04:37,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:04:37,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:04:37,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:04:37,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:04:37,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:04:37,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:04:37,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:04:37,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:04:37,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:04:37,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:04:37,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:04:37,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:04:37,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:04:37,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:04:37,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:04:37,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:04:37,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:04:37,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:04:37,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:04:37,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:04:37,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:04:37,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:04:37,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:04:37,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:04:37,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:04:37,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:04:37,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:04:37,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:04:37,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:04:37,445 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:04:37,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:04:37,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:04:37,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:04:37,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:04:37,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:04:37,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:04:37,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:04:37,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:04:37,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:04:37,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:04:37,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:04:37,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:04:37,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:04:37,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:04:37,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:04:37,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:04:37,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:04:37,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:04:37,449 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:04:37,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:04:37,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:04:37,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:04:37,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-12-21 17:04:37,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:04:37,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:04:37,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:04:37,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:04:37,683 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:04:37,684 INFO L432 ainManager$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 [2021-12-21 17:04:37,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e03202/b8c9f91c5d57426bb847ff191b92e67a/FLAGed36b2ff3 [2021-12-21 17:04:38,378 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:04:38,379 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 [2021-12-21 17:04:38,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e03202/b8c9f91c5d57426bb847ff191b92e67a/FLAGed36b2ff3 [2021-12-21 17:04:38,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e03202/b8c9f91c5d57426bb847ff191b92e67a [2021-12-21 17:04:38,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:04:38,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:04:38,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:04:38,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:04:38,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:04:38,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:04:38" (1/1) ... [2021-12-21 17:04:38,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d31714e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:38, skipping insertion in model container [2021-12-21 17:04:38,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:04:38" (1/1) ... [2021-12-21 17:04:38,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:04:38,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:04:40,459 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] [2021-12-21 17:04:40,461 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] [2021-12-21 17:04:40,462 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] [2021-12-21 17:04:40,462 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] [2021-12-21 17:04:40,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:04:40,507 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:04:40,747 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] [2021-12-21 17:04:40,748 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] [2021-12-21 17:04:40,748 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] [2021-12-21 17:04:40,749 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] [2021-12-21 17:04:40,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:04:40,873 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:04:40,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40 WrapperNode [2021-12-21 17:04:40,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:04:40,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:04:40,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:04:40,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:04:40,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:40,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,100 INFO L137 Inliner]: procedures = 430, calls = 1706, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 4089 [2021-12-21 17:04:41,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:04:41,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:04:41,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:04:41,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:04:41,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:04:41,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:04:41,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:04:41,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:04:41,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (1/1) ... [2021-12-21 17:04:41,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:04:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:04:41,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:04:41,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:04:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-21 17:04:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-21 17:04:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:04:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:04:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:04:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:04:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:04:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:04:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:04:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:04:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:04:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:04:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-12-21 17:04:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-12-21 17:04:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:04:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:04:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:04:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:04:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-21 17:04:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-21 17:04:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-12-21 17:04:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-12-21 17:04:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-21 17:04:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-21 17:04:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 17:04:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 17:04:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:04:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:04:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-12-21 17:04:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-12-21 17:04:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-21 17:04:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-21 17:04:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:04:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:04:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 17:04:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 17:04:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 17:04:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 17:04:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:04:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:04:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:04:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:04:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:04:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:04:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:04:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-12-21 17:04:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-12-21 17:04:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-12-21 17:04:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-12-21 17:04:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:04:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:04:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:04:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:04:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:04:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-12-21 17:04:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-12-21 17:04:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:04:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:04:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:04:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:04:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:04:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:04:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:04:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:04:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:04:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:04:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:04:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:04:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:04:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:04:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 17:04:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 17:04:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:04:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:04:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:04:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:04:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-12-21 17:04:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-12-21 17:04:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:04:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:04:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-12-21 17:04:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-12-21 17:04:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:04:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:04:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:04:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:04:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:04:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:04:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:04:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:04:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:04:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:04:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:04:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-21 17:04:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-21 17:04:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:04:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:04:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-12-21 17:04:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-12-21 17:04:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:04:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:04:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-21 17:04:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-21 17:04:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:04:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:04:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:04:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:04:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:04:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:04:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-12-21 17:04:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-12-21 17:04:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-12-21 17:04:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-12-21 17:04:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-21 17:04:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-21 17:04:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:04:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:04:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-12-21 17:04:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-12-21 17:04:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-21 17:04:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-21 17:04:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:04:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:04:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-12-21 17:04:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-12-21 17:04:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:04:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:04:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:04:41,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:04:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-12-21 17:04:41,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-12-21 17:04:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:04:41,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:04:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:04:41,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:04:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 17:04:41,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 17:04:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:04:41,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:04:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:04:41,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:04:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-12-21 17:04:41,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-21 17:04:41,412 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:04:41,412 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-12-21 17:04:41,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-12-21 17:04:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-12-21 17:04:41,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-12-21 17:04:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-12-21 17:04:41,413 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-12-21 17:04:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:04:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:04:41,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:04:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 17:04:41,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 17:04:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:04:41,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:04:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:04:41,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:04:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:04:41,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:04:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-21 17:04:41,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-21 17:04:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-12-21 17:04:41,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-12-21 17:04:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-12-21 17:04:41,415 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-12-21 17:04:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 17:04:41,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 17:04:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:04:41,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:04:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:04:41,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:04:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:04:41,416 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:04:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:04:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-21 17:04:41,416 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-21 17:04:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:04:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:04:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-12-21 17:04:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-12-21 17:04:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-12-21 17:04:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-12-21 17:04:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-12-21 17:04:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-12-21 17:04:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-21 17:04:41,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-21 17:04:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-12-21 17:04:41,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-12-21 17:04:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:04:41,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:04:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-12-21 17:04:41,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-12-21 17:04:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 17:04:41,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 17:04:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-21 17:04:41,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-21 17:04:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-21 17:04:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:04:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-12-21 17:04:41,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-12-21 17:04:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:04:41,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:04:41,983 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:04:41,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:04:42,625 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:04:44,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:04:44,910 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:04:44,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:04:44,921 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 17:04:44,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:04:44 BoogieIcfgContainer [2021-12-21 17:04:44,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:04:44,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:04:44,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:04:44,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:04:44,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:04:38" (1/3) ... [2021-12-21 17:04:44,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2145f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:04:44, skipping insertion in model container [2021-12-21 17:04:44,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:40" (2/3) ... [2021-12-21 17:04:44,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2145f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:04:44, skipping insertion in model container [2021-12-21 17:04:44,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:04:44" (3/3) ... [2021-12-21 17:04:44,929 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-21 17:04:44,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:04:44,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:04:44,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:04:44,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:04:44,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:04:45,005 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) [2021-12-21 17:04:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 17:04:45,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:45,015 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] [2021-12-21 17:04:45,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -434884534, now seen corresponding path program 1 times [2021-12-21 17:04:45,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:45,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718070878] [2021-12-21 17:04:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:45,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:04:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 17:04:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:04:45,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:45,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718070878] [2021-12-21 17:04:45,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718070878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:45,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:45,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:45,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561546919] [2021-12-21 17:04:45,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:45,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:45,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:45,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:45,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:45,630 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) [2021-12-21 17:04:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:48,924 INFO L93 Difference]: Finished difference Result 5034 states and 7130 transitions. [2021-12-21 17:04:48,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:48,926 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 [2021-12-21 17:04:48,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:48,951 INFO L225 Difference]: With dead ends: 5034 [2021-12-21 17:04:48,951 INFO L226 Difference]: Without dead ends: 3363 [2021-12-21 17:04:48,964 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 [2021-12-21 17:04:48,966 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2956 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:48,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3363 Valid, 4780 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1416 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-21 17:04:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2021-12-21 17:04:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3223. [2021-12-21 17:04:49,170 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) [2021-12-21 17:04:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4419 transitions. [2021-12-21 17:04:49,191 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4419 transitions. Word has length 116 [2021-12-21 17:04:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:49,193 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 4419 transitions. [2021-12-21 17:04:49,193 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) [2021-12-21 17:04:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4419 transitions. [2021-12-21 17:04:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-21 17:04:49,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:49,200 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] [2021-12-21 17:04:49,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:04:49,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:49,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:49,201 INFO L85 PathProgramCache]: Analyzing trace with hash -16530084, now seen corresponding path program 1 times [2021-12-21 17:04:49,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:49,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549457901] [2021-12-21 17:04:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:49,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:04:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 17:04:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:04:49,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:49,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549457901] [2021-12-21 17:04:49,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549457901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:49,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:49,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:49,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185231108] [2021-12-21 17:04:49,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:49,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:49,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:49,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:49,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:49,447 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) [2021-12-21 17:04:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:52,294 INFO L93 Difference]: Finished difference Result 9159 states and 12591 transitions. [2021-12-21 17:04:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:52,297 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 [2021-12-21 17:04:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:52,330 INFO L225 Difference]: With dead ends: 9159 [2021-12-21 17:04:52,330 INFO L226 Difference]: Without dead ends: 5957 [2021-12-21 17:04:52,345 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 [2021-12-21 17:04:52,346 INFO L933 BasicCegarLoop]: 2428 mSDtfsCounter, 2421 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 1321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:52,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2754 Valid, 4842 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1321 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-21 17:04:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-12-21 17:04:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5678. [2021-12-21 17:04:52,514 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) [2021-12-21 17:04:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 7740 transitions. [2021-12-21 17:04:52,541 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 7740 transitions. Word has length 120 [2021-12-21 17:04:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:52,541 INFO L470 AbstractCegarLoop]: Abstraction has 5678 states and 7740 transitions. [2021-12-21 17:04:52,542 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) [2021-12-21 17:04:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 7740 transitions. [2021-12-21 17:04:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-21 17:04:52,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:52,550 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] [2021-12-21 17:04:52,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:04:52,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash -237511787, now seen corresponding path program 1 times [2021-12-21 17:04:52,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:52,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060445616] [2021-12-21 17:04:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:52,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:04:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:04:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:04:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 17:04:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:04:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:04:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 17:04:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-21 17:04:52,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:52,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060445616] [2021-12-21 17:04:52,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060445616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:52,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:52,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 17:04:52,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152752233] [2021-12-21 17:04:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:52,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 17:04:52,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 17:04:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:04:52,919 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) [2021-12-21 17:04:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:58,377 INFO L93 Difference]: Finished difference Result 15052 states and 20562 transitions. [2021-12-21 17:04:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:04:58,378 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 [2021-12-21 17:04:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:58,420 INFO L225 Difference]: With dead ends: 15052 [2021-12-21 17:04:58,420 INFO L226 Difference]: Without dead ends: 9395 [2021-12-21 17:04:58,438 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 [2021-12-21 17:04:58,439 INFO L933 BasicCegarLoop]: 3241 mSDtfsCounter, 6036 mSDsluCounter, 3847 mSDsCounter, 0 mSdLazyCounter, 4767 mSolverCounterSat, 2865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6728 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 7632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2865 IncrementalHoareTripleChecker+Valid, 4767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:58,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6728 Valid, 7088 Invalid, 7632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2865 Valid, 4767 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-21 17:04:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2021-12-21 17:04:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 8879. [2021-12-21 17:04:58,704 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) [2021-12-21 17:04:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 11999 transitions. [2021-12-21 17:04:58,734 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 11999 transitions. Word has length 165 [2021-12-21 17:04:58,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:58,767 INFO L470 AbstractCegarLoop]: Abstraction has 8879 states and 11999 transitions. [2021-12-21 17:04:58,768 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) [2021-12-21 17:04:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 11999 transitions. [2021-12-21 17:04:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-21 17:04:58,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:58,770 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] [2021-12-21 17:04:58,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:04:58,771 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:58,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1787739659, now seen corresponding path program 1 times [2021-12-21 17:04:58,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:58,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363717628] [2021-12-21 17:04:58,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:58,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:04:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:04:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 17:04:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:04:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 17:04:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:04:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:04:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 17:04:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:59,046 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-21 17:04:59,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:59,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363717628] [2021-12-21 17:04:59,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363717628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:59,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:59,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:59,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444814734] [2021-12-21 17:04:59,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:59,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:59,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:59,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:59,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:59,051 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) [2021-12-21 17:05:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:01,952 INFO L93 Difference]: Finished difference Result 21416 states and 29095 transitions. [2021-12-21 17:05:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:01,952 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 [2021-12-21 17:05:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:02,009 INFO L225 Difference]: With dead ends: 21416 [2021-12-21 17:05:02,010 INFO L226 Difference]: Without dead ends: 12558 [2021-12-21 17:05:02,037 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 [2021-12-21 17:05:02,038 INFO L933 BasicCegarLoop]: 2374 mSDtfsCounter, 2775 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 1429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:02,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3162 Valid, 4742 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1429 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-21 17:05:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12558 states. [2021-12-21 17:05:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12558 to 11954. [2021-12-21 17:05:02,371 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) [2021-12-21 17:05:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11954 states to 11954 states and 16151 transitions. [2021-12-21 17:05:02,410 INFO L78 Accepts]: Start accepts. Automaton has 11954 states and 16151 transitions. Word has length 167 [2021-12-21 17:05:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:02,411 INFO L470 AbstractCegarLoop]: Abstraction has 11954 states and 16151 transitions. [2021-12-21 17:05:02,412 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) [2021-12-21 17:05:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 11954 states and 16151 transitions. [2021-12-21 17:05:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-21 17:05:02,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:02,414 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] [2021-12-21 17:05:02,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:05:02,414 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)] === [2021-12-21 17:05:02,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:02,414 INFO L85 PathProgramCache]: Analyzing trace with hash 557013463, now seen corresponding path program 1 times [2021-12-21 17:05:02,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:02,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067383019] [2021-12-21 17:05:02,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:02,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-21 17:05:02,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:02,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067383019] [2021-12-21 17:05:02,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067383019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:02,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:02,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:02,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110766712] [2021-12-21 17:05:02,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:02,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:02,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:02,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:02,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:02,716 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) [2021-12-21 17:05:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:04,798 INFO L93 Difference]: Finished difference Result 12535 states and 17058 transitions. [2021-12-21 17:05:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:04,803 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 [2021-12-21 17:05:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:04,853 INFO L225 Difference]: With dead ends: 12535 [2021-12-21 17:05:04,854 INFO L226 Difference]: Without dead ends: 12533 [2021-12-21 17:05:04,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:04,863 INFO L933 BasicCegarLoop]: 2110 mSDtfsCounter, 2368 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 6090 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:04,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2605 Valid, 6090 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:05:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12533 states. [2021-12-21 17:05:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12533 to 11958. [2021-12-21 17:05:05,243 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) [2021-12-21 17:05:05,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16154 transitions. [2021-12-21 17:05:05,282 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16154 transitions. Word has length 172 [2021-12-21 17:05:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:05,282 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16154 transitions. [2021-12-21 17:05:05,282 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) [2021-12-21 17:05:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16154 transitions. [2021-12-21 17:05:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-21 17:05:05,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:05,285 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] [2021-12-21 17:05:05,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:05:05,286 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)] === [2021-12-21 17:05:05,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:05,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1620405938, now seen corresponding path program 1 times [2021-12-21 17:05:05,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:05,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106269960] [2021-12-21 17:05:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:05,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:05:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-21 17:05:05,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106269960] [2021-12-21 17:05:05,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106269960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:05,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:05,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:05,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810717538] [2021-12-21 17:05:05,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:05,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:05,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:05,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:05,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:05,533 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) [2021-12-21 17:05:07,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:07,789 INFO L93 Difference]: Finished difference Result 12539 states and 17061 transitions. [2021-12-21 17:05:07,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:07,790 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 [2021-12-21 17:05:07,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:07,841 INFO L225 Difference]: With dead ends: 12539 [2021-12-21 17:05:07,842 INFO L226 Difference]: Without dead ends: 12537 [2021-12-21 17:05:07,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:07,852 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 2360 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:07,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2599 Valid, 6085 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 17:05:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12537 states. [2021-12-21 17:05:08,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12537 to 11962. [2021-12-21 17:05:08,233 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) [2021-12-21 17:05:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 16157 transitions. [2021-12-21 17:05:08,271 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 16157 transitions. Word has length 177 [2021-12-21 17:05:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:08,271 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 16157 transitions. [2021-12-21 17:05:08,271 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) [2021-12-21 17:05:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 16157 transitions. [2021-12-21 17:05:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-21 17:05:08,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:08,274 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] [2021-12-21 17:05:08,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:05:08,274 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:08,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:08,275 INFO L85 PathProgramCache]: Analyzing trace with hash 290161655, now seen corresponding path program 1 times [2021-12-21 17:05:08,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:08,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043015998] [2021-12-21 17:05:08,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:08,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:05:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-12-21 17:05:08,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:08,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043015998] [2021-12-21 17:05:08,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043015998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:08,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:08,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:08,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470697066] [2021-12-21 17:05:08,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:08,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:08,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:08,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:08,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:08,538 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) [2021-12-21 17:05:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:10,792 INFO L93 Difference]: Finished difference Result 12543 states and 17064 transitions. [2021-12-21 17:05:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:10,793 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 [2021-12-21 17:05:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:10,832 INFO L225 Difference]: With dead ends: 12543 [2021-12-21 17:05:10,832 INFO L226 Difference]: Without dead ends: 12541 [2021-12-21 17:05:10,838 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 [2021-12-21 17:05:10,839 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 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 [2021-12-21 17:05:10,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:05:10,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2021-12-21 17:05:11,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 11966. [2021-12-21 17:05:11,233 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) [2021-12-21 17:05:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11966 states to 11966 states and 16160 transitions. [2021-12-21 17:05:11,269 INFO L78 Accepts]: Start accepts. Automaton has 11966 states and 16160 transitions. Word has length 182 [2021-12-21 17:05:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:11,270 INFO L470 AbstractCegarLoop]: Abstraction has 11966 states and 16160 transitions. [2021-12-21 17:05:11,270 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) [2021-12-21 17:05:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 11966 states and 16160 transitions. [2021-12-21 17:05:11,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-21 17:05:11,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:11,273 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] [2021-12-21 17:05:11,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:05:11,274 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:11,274 INFO L85 PathProgramCache]: Analyzing trace with hash 507826912, now seen corresponding path program 1 times [2021-12-21 17:05:11,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:11,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945780117] [2021-12-21 17:05:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:11,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 17:05:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 17:05:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 17:05:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 17:05:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 17:05:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 17:05:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-21 17:05:11,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:11,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945780117] [2021-12-21 17:05:11,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945780117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:11,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:11,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:05:11,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178945083] [2021-12-21 17:05:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:11,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:05:11,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:11,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:05:11,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:11,544 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) [2021-12-21 17:05:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:17,618 INFO L93 Difference]: Finished difference Result 36161 states and 49121 transitions. [2021-12-21 17:05:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:05:17,624 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 [2021-12-21 17:05:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:17,702 INFO L225 Difference]: With dead ends: 36161 [2021-12-21 17:05:17,702 INFO L226 Difference]: Without dead ends: 24291 [2021-12-21 17:05:17,737 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 [2021-12-21 17:05:17,737 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 4321 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 3125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 5895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3125 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:17,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4583 Valid, 5006 Invalid, 5895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3125 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-21 17:05:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2021-12-21 17:05:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 23107. [2021-12-21 17:05:18,570 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) [2021-12-21 17:05:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23107 states to 23107 states and 31172 transitions. [2021-12-21 17:05:18,652 INFO L78 Accepts]: Start accepts. Automaton has 23107 states and 31172 transitions. Word has length 199 [2021-12-21 17:05:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:18,653 INFO L470 AbstractCegarLoop]: Abstraction has 23107 states and 31172 transitions. [2021-12-21 17:05:18,653 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) [2021-12-21 17:05:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23107 states and 31172 transitions. [2021-12-21 17:05:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-21 17:05:18,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:18,656 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] [2021-12-21 17:05:18,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:05:18,657 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)] === [2021-12-21 17:05:18,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:18,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1030513118, now seen corresponding path program 1 times [2021-12-21 17:05:18,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:18,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982911216] [2021-12-21 17:05:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:18,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 17:05:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 17:05:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 17:05:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 17:05:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 17:05:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 17:05:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-21 17:05:18,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982911216] [2021-12-21 17:05:18,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982911216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:18,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:18,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:05:18,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181496998] [2021-12-21 17:05:18,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:18,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:05:18,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:05:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:18,848 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) [2021-12-21 17:05:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:26,589 INFO L93 Difference]: Finished difference Result 58976 states and 79978 transitions. [2021-12-21 17:05:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:05:26,591 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 [2021-12-21 17:05:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:26,707 INFO L225 Difference]: With dead ends: 58976 [2021-12-21 17:05:26,707 INFO L226 Difference]: Without dead ends: 35965 [2021-12-21 17:05:26,763 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 [2021-12-21 17:05:26,765 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 2986 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 2958 mSolverCounterSat, 2273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 7412 SdHoareTripleChecker+Invalid, 5231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2273 IncrementalHoareTripleChecker+Valid, 2958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:26,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3249 Valid, 7412 Invalid, 5231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2273 Valid, 2958 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-21 17:05:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-12-21 17:05:27,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34236. [2021-12-21 17:05:27,939 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) [2021-12-21 17:05:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 46172 transitions. [2021-12-21 17:05:28,081 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 46172 transitions. Word has length 199 [2021-12-21 17:05:28,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:28,082 INFO L470 AbstractCegarLoop]: Abstraction has 34236 states and 46172 transitions. [2021-12-21 17:05:28,082 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) [2021-12-21 17:05:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 46172 transitions. [2021-12-21 17:05:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-21 17:05:28,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:28,088 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] [2021-12-21 17:05:28,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:05:28,088 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)] === [2021-12-21 17:05:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -525210962, now seen corresponding path program 1 times [2021-12-21 17:05:28,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:28,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417738849] [2021-12-21 17:05:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:28,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:05:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 17:05:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-21 17:05:28,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:28,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417738849] [2021-12-21 17:05:28,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417738849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:28,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:28,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:28,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202923845] [2021-12-21 17:05:28,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:28,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:28,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:28,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:28,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:28,349 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) [2021-12-21 17:05:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:31,326 INFO L93 Difference]: Finished difference Result 35967 states and 48867 transitions. [2021-12-21 17:05:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:31,327 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 [2021-12-21 17:05:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:31,447 INFO L225 Difference]: With dead ends: 35967 [2021-12-21 17:05:31,447 INFO L226 Difference]: Without dead ends: 35965 [2021-12-21 17:05:31,465 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 [2021-12-21 17:05:31,466 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:31,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:05:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-12-21 17:05:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34240. [2021-12-21 17:05:32,727 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) [2021-12-21 17:05:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34240 states to 34240 states and 46175 transitions. [2021-12-21 17:05:32,841 INFO L78 Accepts]: Start accepts. Automaton has 34240 states and 46175 transitions. Word has length 187 [2021-12-21 17:05:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:32,841 INFO L470 AbstractCegarLoop]: Abstraction has 34240 states and 46175 transitions. [2021-12-21 17:05:32,841 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) [2021-12-21 17:05:32,842 INFO L276 IsEmpty]: Start isEmpty. Operand 34240 states and 46175 transitions. [2021-12-21 17:05:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-21 17:05:32,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:32,844 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] [2021-12-21 17:05:32,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 17:05:32,845 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)] === [2021-12-21 17:05:32,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash 129971735, now seen corresponding path program 1 times [2021-12-21 17:05:32,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:32,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629892507] [2021-12-21 17:05:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:32,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:05:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:05:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:05:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:05:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:05:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:05:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 17:05:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:05:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:33,076 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-12-21 17:05:33,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:33,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629892507] [2021-12-21 17:05:33,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629892507] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:33,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:33,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:33,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790356914] [2021-12-21 17:05:33,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:33,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:33,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:33,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:33,079 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)