./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.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 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 16:27:31,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 16:27:31,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 16:27:31,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 16:27:31,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 16:27:31,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 16:27:31,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 16:27:31,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 16:27:31,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 16:27:31,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 16:27:31,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 16:27:31,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 16:27:31,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 16:27:31,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 16:27:31,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 16:27:31,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 16:27:31,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 16:27:31,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 16:27:31,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 16:27:31,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 16:27:31,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 16:27:31,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 16:27:31,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 16:27:31,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 16:27:31,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 16:27:31,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 16:27:31,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 16:27:31,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 16:27:31,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 16:27:31,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 16:27:31,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 16:27:31,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 16:27:31,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 16:27:31,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 16:27:31,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 16:27:31,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 16:27:31,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 16:27:31,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 16:27:31,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 16:27:31,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 16:27:31,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 16:27:31,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 16:27:31,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 16:27:31,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 16:27:31,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 16:27:31,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 16:27:31,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 16:27:31,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 16:27:31,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 16:27:31,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 16:27:31,526 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 16:27:31,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 16:27:31,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 16:27:31,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 16:27:31,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 16:27:31,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 16:27:31,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 16:27:31,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 16:27:31,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:27:31,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 16:27:31,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 16:27:31,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 16:27:31,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 16:27:31,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 16:27:31,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 16:27:31,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 16:27:31,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 16:27:31,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 16:27:31,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2021-12-18 16:27:31,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 16:27:31,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 16:27:31,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 16:27:31,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 16:27:31,852 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 16:27:31,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-12-18 16:27:31,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62139ee/b0c536ac57634e6f8a4cc92084047232/FLAG910ee2952 [2021-12-18 16:27:32,752 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 16:27:32,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-12-18 16:27:32,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62139ee/b0c536ac57634e6f8a4cc92084047232/FLAG910ee2952 [2021-12-18 16:27:32,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62139ee/b0c536ac57634e6f8a4cc92084047232 [2021-12-18 16:27:32,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 16:27:32,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 16:27:32,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 16:27:32,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 16:27:32,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 16:27:32,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:27:32" (1/1) ... [2021-12-18 16:27:32,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5337669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:32, skipping insertion in model container [2021-12-18 16:27:32,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:27:32" (1/1) ... [2021-12-18 16:27:32,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 16:27:33,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 16:27:37,684 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-12-18 16:27:37,687 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-12-18 16:27:37,687 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-12-18 16:27:37,688 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-12-18 16:27:37,688 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-12-18 16:27:37,702 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-12-18 16:27:37,702 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-12-18 16:27:37,703 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-12-18 16:27:37,703 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-12-18 16:27:37,704 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-12-18 16:27:37,704 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-12-18 16:27:37,704 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-12-18 16:27:37,705 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-12-18 16:27:37,705 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-12-18 16:27:37,705 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-12-18 16:27:37,707 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-12-18 16:27:37,707 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-12-18 16:27:37,708 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-12-18 16:27:37,709 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-12-18 16:27:37,709 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-12-18 16:27:37,709 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-12-18 16:27:37,711 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-12-18 16:27:37,712 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-12-18 16:27:37,712 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-12-18 16:27:37,716 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-12-18 16:27:37,716 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-12-18 16:27:37,717 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-12-18 16:27:37,717 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-12-18 16:27:37,718 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-12-18 16:27:37,720 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-12-18 16:27:37,721 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-12-18 16:27:37,721 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-12-18 16:27:37,722 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-12-18 16:27:37,722 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-12-18 16:27:37,723 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-12-18 16:27:37,724 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-12-18 16:27:37,724 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-12-18 16:27:37,724 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-12-18 16:27:37,725 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-12-18 16:27:37,725 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-12-18 16:27:37,725 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-12-18 16:27:37,726 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-12-18 16:27:37,726 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-12-18 16:27:37,727 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-12-18 16:27:37,727 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-12-18 16:27:37,728 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-12-18 16:27:37,728 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-12-18 16:27:37,729 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-12-18 16:27:37,730 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-12-18 16:27:37,730 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-12-18 16:27:37,730 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-12-18 16:27:37,731 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-12-18 16:27:37,731 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-12-18 16:27:37,732 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-12-18 16:27:37,732 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-12-18 16:27:37,732 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-12-18 16:27:37,732 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-12-18 16:27:37,733 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-12-18 16:27:37,733 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-12-18 16:27:37,733 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-12-18 16:27:37,734 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-12-18 16:27:37,735 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-12-18 16:27:37,735 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-12-18 16:27:37,736 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-12-18 16:27:37,736 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-12-18 16:27:37,736 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-12-18 16:27:37,737 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-12-18 16:27:37,737 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-12-18 16:27:37,738 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-12-18 16:27:37,738 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-12-18 16:27:37,738 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-12-18 16:27:37,739 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-12-18 16:27:37,739 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-12-18 16:27:37,739 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-12-18 16:27:37,740 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-12-18 16:27:37,740 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-12-18 16:27:37,741 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-12-18 16:27:37,741 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-12-18 16:27:37,741 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-12-18 16:27:37,742 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-12-18 16:27:37,742 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-12-18 16:27:37,742 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-12-18 16:27:37,743 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-12-18 16:27:37,743 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-12-18 16:27:37,743 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-12-18 16:27:37,744 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-12-18 16:27:37,744 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-12-18 16:27:37,745 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-12-18 16:27:37,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:27:37,790 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 16:27:38,183 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-12-18 16:27:38,187 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-12-18 16:27:38,188 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-12-18 16:27:38,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-12-18 16:27:38,190 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-12-18 16:27:38,190 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-12-18 16:27:38,191 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-12-18 16:27:38,191 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-12-18 16:27:38,191 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-12-18 16:27:38,192 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-12-18 16:27:38,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-12-18 16:27:38,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-12-18 16:27:38,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-12-18 16:27:38,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-12-18 16:27:38,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-12-18 16:27:38,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-12-18 16:27:38,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-12-18 16:27:38,196 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-12-18 16:27:38,196 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-12-18 16:27:38,196 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-12-18 16:27:38,196 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-12-18 16:27:38,197 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-12-18 16:27:38,197 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-12-18 16:27:38,197 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-12-18 16:27:38,198 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-12-18 16:27:38,198 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-12-18 16:27:38,199 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-12-18 16:27:38,199 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-12-18 16:27:38,200 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-12-18 16:27:38,200 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-12-18 16:27:38,200 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-12-18 16:27:38,201 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-12-18 16:27:38,201 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-12-18 16:27:38,202 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-12-18 16:27:38,202 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-12-18 16:27:38,202 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-12-18 16:27:38,203 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-12-18 16:27:38,203 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-12-18 16:27:38,203 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-12-18 16:27:38,204 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-12-18 16:27:38,205 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-12-18 16:27:38,206 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-12-18 16:27:38,206 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-12-18 16:27:38,206 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-12-18 16:27:38,207 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-12-18 16:27:38,207 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-12-18 16:27:38,208 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-12-18 16:27:38,208 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-12-18 16:27:38,208 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-12-18 16:27:38,208 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-12-18 16:27:38,209 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-12-18 16:27:38,209 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-12-18 16:27:38,210 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-12-18 16:27:38,210 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-12-18 16:27:38,211 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-12-18 16:27:38,211 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-12-18 16:27:38,212 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-12-18 16:27:38,212 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-12-18 16:27:38,212 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-12-18 16:27:38,214 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-12-18 16:27:38,214 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-12-18 16:27:38,215 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-12-18 16:27:38,216 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-12-18 16:27:38,219 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-12-18 16:27:38,222 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-12-18 16:27:38,223 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-12-18 16:27:38,223 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-12-18 16:27:38,224 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-12-18 16:27:38,225 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-12-18 16:27:38,225 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-12-18 16:27:38,225 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-12-18 16:27:38,226 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-12-18 16:27:38,232 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-12-18 16:27:38,232 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-12-18 16:27:38,232 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-12-18 16:27:38,233 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-12-18 16:27:38,233 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-12-18 16:27:38,233 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-12-18 16:27:38,234 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-12-18 16:27:38,235 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-12-18 16:27:38,235 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-12-18 16:27:38,236 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-12-18 16:27:38,236 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-12-18 16:27:38,237 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-12-18 16:27:38,237 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-12-18 16:27:38,237 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-12-18 16:27:38,237 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-12-18 16:27:38,238 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-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-12-18 16:27:38,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:27:38,469 INFO L208 MainTranslator]: Completed translation [2021-12-18 16:27:38,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38 WrapperNode [2021-12-18 16:27:38,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 16:27:38,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 16:27:38,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 16:27:38,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 16:27:38,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:38,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:38,873 INFO L137 Inliner]: procedures = 716, calls = 4114, calls flagged for inlining = 351, calls inlined = 253, statements flattened = 8148 [2021-12-18 16:27:38,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 16:27:38,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 16:27:38,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 16:27:38,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 16:27:38,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:38,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:38,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:38,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:39,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:39,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:39,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:39,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 16:27:39,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 16:27:39,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 16:27:39,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 16:27:39,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (1/1) ... [2021-12-18 16:27:39,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:27:39,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:27:39,173 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) [2021-12-18 16:27:39,194 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 [2021-12-18 16:27:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2021-12-18 16:27:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2021-12-18 16:27:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2021-12-18 16:27:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2021-12-18 16:27:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2021-12-18 16:27:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2021-12-18 16:27:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2021-12-18 16:27:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2021-12-18 16:27:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-18 16:27:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:27:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:27:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-18 16:27:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-18 16:27:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 16:27:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 16:27:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-18 16:27:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-18 16:27:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2021-12-18 16:27:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2021-12-18 16:27:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 16:27:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 16:27:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:27:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:27:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 16:27:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 16:27:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:27:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:27:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2021-12-18 16:27:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2021-12-18 16:27:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:27:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:27:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:27:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:27:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2021-12-18 16:27:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2021-12-18 16:27:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_lookup [2021-12-18 16:27:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_lookup [2021-12-18 16:27:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2021-12-18 16:27:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2021-12-18 16:27:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 16:27:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 16:27:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2021-12-18 16:27:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2021-12-18 16:27:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 16:27:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 16:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:27:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2021-12-18 16:27:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2021-12-18 16:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2021-12-18 16:27:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2021-12-18 16:27:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 16:27:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2021-12-18 16:27:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2021-12-18 16:27:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2021-12-18 16:27:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2021-12-18 16:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2021-12-18 16:27:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2021-12-18 16:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 16:27:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 16:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2021-12-18 16:27:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2021-12-18 16:27:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:27:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 16:27:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 16:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2021-12-18 16:27:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2021-12-18 16:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 16:27:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2021-12-18 16:27:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2021-12-18 16:27:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2021-12-18 16:27:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2021-12-18 16:27:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 16:27:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-18 16:27:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-18 16:27:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 16:27:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 16:27:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:27:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:27:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 16:27:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:27:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:27:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2021-12-18 16:27:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2021-12-18 16:27:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 16:27:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 16:27:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-12-18 16:27:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-12-18 16:27:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 16:27:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 16:27:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:27:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:27:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 16:27:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 16:27:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-18 16:27:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-18 16:27:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2021-12-18 16:27:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2021-12-18 16:27:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 16:27:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 16:27:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:27:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:27:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2021-12-18 16:27:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2021-12-18 16:27:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:27:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:27:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2021-12-18 16:27:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2021-12-18 16:27:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 16:27:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2021-12-18 16:27:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2021-12-18 16:27:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2021-12-18 16:27:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2021-12-18 16:27:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-18 16:27:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-12-18 16:27:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2021-12-18 16:27:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2021-12-18 16:27:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 16:27:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 16:27:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 16:27:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 16:27:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 16:27:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:27:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:27:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2021-12-18 16:27:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2021-12-18 16:27:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2021-12-18 16:27:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2021-12-18 16:27:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-12-18 16:27:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-12-18 16:27:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:27:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:27:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2021-12-18 16:27:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2021-12-18 16:27:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2021-12-18 16:27:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2021-12-18 16:27:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 16:27:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 16:27:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 16:27:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 16:27:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 16:27:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 16:27:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2021-12-18 16:27:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2021-12-18 16:27:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2021-12-18 16:27:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2021-12-18 16:27:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2021-12-18 16:27:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2021-12-18 16:27:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2021-12-18 16:27:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2021-12-18 16:27:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2021-12-18 16:27:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2021-12-18 16:27:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 16:27:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 16:27:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 16:27:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 16:27:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2021-12-18 16:27:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2021-12-18 16:27:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:27:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:27:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2021-12-18 16:27:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2021-12-18 16:27:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2021-12-18 16:27:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2021-12-18 16:27:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2021-12-18 16:27:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2021-12-18 16:27:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2021-12-18 16:27:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2021-12-18 16:27:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2021-12-18 16:27:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2021-12-18 16:27:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 16:27:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 16:27:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2021-12-18 16:27:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2021-12-18 16:27:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 16:27:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 16:27:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:27:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:27:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-12-18 16:27:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-12-18 16:27:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 16:27:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 16:27:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:27:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:27:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2021-12-18 16:27:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2021-12-18 16:27:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 16:27:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 16:27:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 16:27:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-12-18 16:27:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-12-18 16:27:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:27:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:27:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 16:27:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2021-12-18 16:27:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2021-12-18 16:27:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2021-12-18 16:27:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2021-12-18 16:27:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2021-12-18 16:27:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2021-12-18 16:27:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 16:27:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2021-12-18 16:27:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2021-12-18 16:27:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 16:27:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 16:27:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:27:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:27:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 16:27:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 16:27:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2021-12-18 16:27:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2021-12-18 16:27:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 16:27:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 16:27:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:27:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:27:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:27:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:27:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:27:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:27:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-18 16:27:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-18 16:27:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2021-12-18 16:27:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2021-12-18 16:27:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2021-12-18 16:27:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2021-12-18 16:27:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 16:27:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 16:27:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:27:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:27:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2021-12-18 16:27:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2021-12-18 16:27:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 16:27:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 16:27:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:27:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:27:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2021-12-18 16:27:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2021-12-18 16:27:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 16:27:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:27:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:27:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2021-12-18 16:27:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2021-12-18 16:27:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2021-12-18 16:27:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2021-12-18 16:27:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 16:27:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 16:27:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2021-12-18 16:27:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2021-12-18 16:27:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2021-12-18 16:27:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2021-12-18 16:27:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-12-18 16:27:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-12-18 16:27:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:27:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:27:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-12-18 16:27:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-12-18 16:27:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2021-12-18 16:27:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2021-12-18 16:27:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 16:27:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 16:27:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 16:27:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 16:27:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2021-12-18 16:27:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2021-12-18 16:27:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 16:27:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 16:27:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:27:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:27:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2021-12-18 16:27:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2021-12-18 16:27:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2021-12-18 16:27:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2021-12-18 16:27:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2021-12-18 16:27:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2021-12-18 16:27:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-12-18 16:27:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-12-18 16:27:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 16:27:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-18 16:27:40,304 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 16:27:40,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 16:27:40,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 16:27:52,567 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 16:27:52,584 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 16:27:52,584 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-18 16:27:52,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:27:52 BoogieIcfgContainer [2021-12-18 16:27:52,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 16:27:52,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 16:27:52,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 16:27:52,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 16:27:52,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:27:32" (1/3) ... [2021-12-18 16:27:52,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542202d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:27:52, skipping insertion in model container [2021-12-18 16:27:52,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:38" (2/3) ... [2021-12-18 16:27:52,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542202d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:27:52, skipping insertion in model container [2021-12-18 16:27:52,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:27:52" (3/3) ... [2021-12-18 16:27:52,597 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-12-18 16:27:52,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 16:27:52,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-12-18 16:27:52,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 16:27:52,654 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 [2021-12-18 16:27:52,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-12-18 16:27:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1735 states have (on average 1.3181556195965418) internal successors, (2287), 1828 states have internal predecessors, (2287), 644 states have call successors, (644), 130 states have call predecessors, (644), 129 states have return successors, (634), 617 states have call predecessors, (634), 634 states have call successors, (634) [2021-12-18 16:27:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 16:27:52,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:52,731 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 16:27:52,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:52,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -615628932, now seen corresponding path program 1 times [2021-12-18 16:27:52,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:52,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120169453] [2021-12-18 16:27:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:52,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:27:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:27:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:27:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:53,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-18 16:27:53,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:53,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120169453] [2021-12-18 16:27:53,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120169453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:53,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:53,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:27:53,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733055755] [2021-12-18 16:27:53,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:53,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:27:53,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:27:53,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:27:53,562 INFO L87 Difference]: Start difference. First operand has 2542 states, 1735 states have (on average 1.3181556195965418) internal successors, (2287), 1828 states have internal predecessors, (2287), 644 states have call successors, (644), 130 states have call predecessors, (644), 129 states have return successors, (634), 617 states have call predecessors, (634), 634 states have call successors, (634) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:27:58,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:02,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:04,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:07,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:08,232 INFO L93 Difference]: Finished difference Result 5731 states and 8240 transitions. [2021-12-18 16:28:08,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:28:08,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2021-12-18 16:28:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:08,272 INFO L225 Difference]: With dead ends: 5731 [2021-12-18 16:28:08,272 INFO L226 Difference]: Without dead ends: 3199 [2021-12-18 16:28:08,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:08,295 INFO L933 BasicCegarLoop]: 3471 mSDtfsCounter, 3960 mSDsluCounter, 5099 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 1102 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4358 SdHoareTripleChecker+Valid, 8570 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:08,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4358 Valid, 8570 Invalid, 2834 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1102 Valid, 1728 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2021-12-18 16:28:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-12-18 16:28:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3015. [2021-12-18 16:28:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2067 states have (on average 1.281567489114659) internal successors, (2649), 2163 states have internal predecessors, (2649), 743 states have call successors, (743), 174 states have call predecessors, (743), 173 states have return successors, (741), 719 states have call predecessors, (741), 741 states have call successors, (741) [2021-12-18 16:28:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4133 transitions. [2021-12-18 16:28:08,582 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4133 transitions. Word has length 47 [2021-12-18 16:28:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:08,583 INFO L470 AbstractCegarLoop]: Abstraction has 3015 states and 4133 transitions. [2021-12-18 16:28:08,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4133 transitions. [2021-12-18 16:28:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 16:28:08,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:08,588 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 16:28:08,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 16:28:08,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:28:08,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:08,590 INFO L85 PathProgramCache]: Analyzing trace with hash -685141485, now seen corresponding path program 1 times [2021-12-18 16:28:08,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:08,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284761542] [2021-12-18 16:28:08,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:08,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:28:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:09,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:09,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:28:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:28:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-18 16:28:09,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:09,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284761542] [2021-12-18 16:28:09,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284761542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:09,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:09,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:28:09,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157140440] [2021-12-18 16:28:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:09,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:28:09,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:09,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:28:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:28:09,040 INFO L87 Difference]: Start difference. First operand 3015 states and 4133 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:12,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:16,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:19,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:20,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:20,626 INFO L93 Difference]: Finished difference Result 3199 states and 4416 transitions. [2021-12-18 16:28:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:28:20,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2021-12-18 16:28:20,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:20,645 INFO L225 Difference]: With dead ends: 3199 [2021-12-18 16:28:20,645 INFO L226 Difference]: Without dead ends: 3197 [2021-12-18 16:28:20,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:20,648 INFO L933 BasicCegarLoop]: 3407 mSDtfsCounter, 3941 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 1104 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:20,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4339 Valid, 8438 Invalid, 2825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1104 Valid, 1718 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2021-12-18 16:28:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-12-18 16:28:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3013. [2021-12-18 16:28:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2066 states have (on average 1.2812197483059051) internal successors, (2647), 2161 states have internal predecessors, (2647), 743 states have call successors, (743), 174 states have call predecessors, (743), 173 states have return successors, (741), 719 states have call predecessors, (741), 741 states have call successors, (741) [2021-12-18 16:28:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4131 transitions. [2021-12-18 16:28:20,813 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4131 transitions. Word has length 50 [2021-12-18 16:28:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:20,815 INFO L470 AbstractCegarLoop]: Abstraction has 3013 states and 4131 transitions. [2021-12-18 16:28:20,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4131 transitions. [2021-12-18 16:28:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-18 16:28:20,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:20,817 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 16:28:20,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 16:28:20,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:28:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1359359320, now seen corresponding path program 1 times [2021-12-18 16:28:20,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:20,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379034773] [2021-12-18 16:28:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:20,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:28:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:28:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:28:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-18 16:28:21,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:21,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379034773] [2021-12-18 16:28:21,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379034773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:21,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:21,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:28:21,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752070962] [2021-12-18 16:28:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:21,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:28:21,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:28:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:28:21,134 INFO L87 Difference]: Start difference. First operand 3013 states and 4131 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:26,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:28,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:31,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:33,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:34,546 INFO L93 Difference]: Finished difference Result 3742 states and 5142 transitions. [2021-12-18 16:28:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:28:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2021-12-18 16:28:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:34,566 INFO L225 Difference]: With dead ends: 3742 [2021-12-18 16:28:34,566 INFO L226 Difference]: Without dead ends: 3740 [2021-12-18 16:28:34,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:34,571 INFO L933 BasicCegarLoop]: 3441 mSDtfsCounter, 3893 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 1091 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 8517 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:34,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4290 Valid, 8517 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 1722 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2021-12-18 16:28:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2021-12-18 16:28:34,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3539. [2021-12-18 16:28:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 2439 states have (on average 1.2845428454284542) internal successors, (3133), 2546 states have internal predecessors, (3133), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:28:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 4835 transitions. [2021-12-18 16:28:34,711 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 4835 transitions. Word has length 53 [2021-12-18 16:28:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:34,712 INFO L470 AbstractCegarLoop]: Abstraction has 3539 states and 4835 transitions. [2021-12-18 16:28:34,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 4835 transitions. [2021-12-18 16:28:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-18 16:28:34,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:34,714 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 16:28:34,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 16:28:34,714 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:28:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash 579173503, now seen corresponding path program 1 times [2021-12-18 16:28:34,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:34,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615788092] [2021-12-18 16:28:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:34,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:34,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:28:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:34,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:34,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:28:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:34,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:28:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-18 16:28:35,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:35,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615788092] [2021-12-18 16:28:35,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615788092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:35,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:35,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:28:35,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880768872] [2021-12-18 16:28:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:35,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:28:35,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:35,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:28:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:28:35,012 INFO L87 Difference]: Start difference. First operand 3539 states and 4835 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:40,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:43,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:44,125 INFO L93 Difference]: Finished difference Result 3740 states and 5140 transitions. [2021-12-18 16:28:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:28:44,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2021-12-18 16:28:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:44,143 INFO L225 Difference]: With dead ends: 3740 [2021-12-18 16:28:44,144 INFO L226 Difference]: Without dead ends: 3738 [2021-12-18 16:28:44,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:44,147 INFO L933 BasicCegarLoop]: 3411 mSDtfsCounter, 3903 mSDsluCounter, 5046 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 1101 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4302 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 2826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:44,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4302 Valid, 8457 Invalid, 2826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1101 Valid, 1723 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-12-18 16:28:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2021-12-18 16:28:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3537. [2021-12-18 16:28:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2438 states have (on average 1.2842493847415914) internal successors, (3131), 2544 states have internal predecessors, (3131), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:28:44,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4833 transitions. [2021-12-18 16:28:44,282 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4833 transitions. Word has length 56 [2021-12-18 16:28:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:44,282 INFO L470 AbstractCegarLoop]: Abstraction has 3537 states and 4833 transitions. [2021-12-18 16:28:44,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:28:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4833 transitions. [2021-12-18 16:28:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-18 16:28:44,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:44,300 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:28:44,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 16:28:44,300 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:28:44,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1664751932, now seen corresponding path program 1 times [2021-12-18 16:28:44,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:44,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623245020] [2021-12-18 16:28:44,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:44,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:28:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:28:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:28:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:28:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:28:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:28:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:28:44,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:44,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623245020] [2021-12-18 16:28:44,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623245020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:44,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:44,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:28:44,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236272827] [2021-12-18 16:28:44,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:44,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:28:44,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:28:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:44,635 INFO L87 Difference]: Start difference. First operand 3537 states and 4833 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 16:28:48,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:50,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:57,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:01,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:04,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:06,852 INFO L93 Difference]: Finished difference Result 3738 states and 5138 transitions. [2021-12-18 16:29:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:29:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-12-18 16:29:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:06,871 INFO L225 Difference]: With dead ends: 3738 [2021-12-18 16:29:06,871 INFO L226 Difference]: Without dead ends: 3736 [2021-12-18 16:29:06,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:29:06,874 INFO L933 BasicCegarLoop]: 3004 mSDtfsCounter, 7848 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 4742 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8052 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 10436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4742 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:06,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8052 Valid, 5846 Invalid, 10436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4742 Valid, 5689 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2021-12-18 16:29:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-12-18 16:29:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3535. [2021-12-18 16:29:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2437 states have (on average 1.2839556832170702) internal successors, (3129), 2542 states have internal predecessors, (3129), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:29:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4831 transitions. [2021-12-18 16:29:07,096 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4831 transitions. Word has length 65 [2021-12-18 16:29:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:07,097 INFO L470 AbstractCegarLoop]: Abstraction has 3535 states and 4831 transitions. [2021-12-18 16:29:07,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 16:29:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4831 transitions. [2021-12-18 16:29:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-18 16:29:07,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:07,098 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:29:07,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 16:29:07,099 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:29:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash -451289561, now seen corresponding path program 1 times [2021-12-18 16:29:07,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:07,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643858472] [2021-12-18 16:29:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:07,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:29:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:29:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:29:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:29:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:29:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:29:07,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:07,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643858472] [2021-12-18 16:29:07,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643858472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:07,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:07,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:29:07,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446291231] [2021-12-18 16:29:07,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:07,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:29:07,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:29:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:29:07,404 INFO L87 Difference]: Start difference. First operand 3535 states and 4831 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:29:11,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:13,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:21,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:25,399 INFO L93 Difference]: Finished difference Result 3736 states and 5136 transitions. [2021-12-18 16:29:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:29:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2021-12-18 16:29:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:25,416 INFO L225 Difference]: With dead ends: 3736 [2021-12-18 16:29:25,417 INFO L226 Difference]: Without dead ends: 3734 [2021-12-18 16:29:25,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:29:25,419 INFO L933 BasicCegarLoop]: 3002 mSDtfsCounter, 7840 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 4742 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8043 SdHoareTripleChecker+Valid, 5844 SdHoareTripleChecker+Invalid, 10434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4742 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:25,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8043 Valid, 5844 Invalid, 10434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4742 Valid, 5689 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-12-18 16:29:25,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2021-12-18 16:29:25,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3533. [2021-12-18 16:29:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 2436 states have (on average 1.2836617405582922) internal successors, (3127), 2540 states have internal predecessors, (3127), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:29:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4829 transitions. [2021-12-18 16:29:25,567 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4829 transitions. Word has length 71 [2021-12-18 16:29:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:25,567 INFO L470 AbstractCegarLoop]: Abstraction has 3533 states and 4829 transitions. [2021-12-18 16:29:25,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:29:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4829 transitions. [2021-12-18 16:29:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-18 16:29:25,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:25,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:29:25,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 16:29:25,569 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:29:25,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:25,570 INFO L85 PathProgramCache]: Analyzing trace with hash -668557120, now seen corresponding path program 1 times [2021-12-18 16:29:25,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:25,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891767871] [2021-12-18 16:29:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:25,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:29:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:29:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:29:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:29:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:29:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:29:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:29:25,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891767871] [2021-12-18 16:29:25,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891767871] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:25,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:25,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:29:25,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136880633] [2021-12-18 16:29:25,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:25,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:29:25,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:25,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:29:25,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:29:25,913 INFO L87 Difference]: Start difference. First operand 3533 states and 4829 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:29:30,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:32,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:41,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:44,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:46,861 INFO L93 Difference]: Finished difference Result 3734 states and 5134 transitions. [2021-12-18 16:29:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:29:46,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-18 16:29:46,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:46,877 INFO L225 Difference]: With dead ends: 3734 [2021-12-18 16:29:46,877 INFO L226 Difference]: Without dead ends: 3732 [2021-12-18 16:29:46,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:29:46,879 INFO L933 BasicCegarLoop]: 2975 mSDtfsCounter, 7892 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 5661 mSolverCounterSat, 4757 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8096 SdHoareTripleChecker+Valid, 5810 SdHoareTripleChecker+Invalid, 10422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4757 IncrementalHoareTripleChecker+Valid, 5661 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:46,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8096 Valid, 5810 Invalid, 10422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4757 Valid, 5661 Invalid, 4 Unknown, 0 Unchecked, 20.5s Time] [2021-12-18 16:29:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3732 states. [2021-12-18 16:29:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 3531. [2021-12-18 16:29:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 2435 states have (on average 1.2833675564681726) internal successors, (3125), 2538 states have internal predecessors, (3125), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:29:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 4827 transitions. [2021-12-18 16:29:47,034 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 4827 transitions. Word has length 77 [2021-12-18 16:29:47,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:47,035 INFO L470 AbstractCegarLoop]: Abstraction has 3531 states and 4827 transitions. [2021-12-18 16:29:47,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:29:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 4827 transitions. [2021-12-18 16:29:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 16:29:47,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:47,037 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:29:47,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 16:29:47,037 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:29:47,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash -310806438, now seen corresponding path program 1 times [2021-12-18 16:29:47,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:47,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020758495] [2021-12-18 16:29:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:47,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:29:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:29:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:29:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:29:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:29:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:29:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:29:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:29:47,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:47,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020758495] [2021-12-18 16:29:47,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020758495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:47,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:47,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:29:47,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448159353] [2021-12-18 16:29:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:47,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:29:47,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:47,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:29:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:29:47,330 INFO L87 Difference]: Start difference. First operand 3531 states and 4827 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 16:29:49,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:52,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:54,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:58,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:04,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:06,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:09,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:11,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:15,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:18,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:20,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:30:22,049 INFO L93 Difference]: Finished difference Result 3732 states and 5132 transitions. [2021-12-18 16:30:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:30:22,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2021-12-18 16:30:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:30:22,072 INFO L225 Difference]: With dead ends: 3732 [2021-12-18 16:30:22,072 INFO L226 Difference]: Without dead ends: 3730 [2021-12-18 16:30:22,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:30:22,075 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 7878 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 5654 mSolverCounterSat, 4760 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8080 SdHoareTripleChecker+Valid, 5813 SdHoareTripleChecker+Invalid, 10424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4760 IncrementalHoareTripleChecker+Valid, 5654 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:30:22,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8080 Valid, 5813 Invalid, 10424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4760 Valid, 5654 Invalid, 10 Unknown, 0 Unchecked, 34.2s Time] [2021-12-18 16:30:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2021-12-18 16:30:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3529. [2021-12-18 16:30:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 2434 states have (on average 1.2830731306491372) internal successors, (3123), 2536 states have internal predecessors, (3123), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:30:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4825 transitions. [2021-12-18 16:30:22,271 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4825 transitions. Word has length 83 [2021-12-18 16:30:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:30:22,272 INFO L470 AbstractCegarLoop]: Abstraction has 3529 states and 4825 transitions. [2021-12-18 16:30:22,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 16:30:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4825 transitions. [2021-12-18 16:30:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-18 16:30:22,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:30:22,278 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:30:22,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 16:30:22,278 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:30:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:30:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1921009681, now seen corresponding path program 1 times [2021-12-18 16:30:22,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:30:22,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235753786] [2021-12-18 16:30:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:30:22,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:30:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:30:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:30:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:30:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:30:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 16:30:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 16:30:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:30:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:30:22,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:30:22,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235753786] [2021-12-18 16:30:22,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235753786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:30:22,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:30:22,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:30:22,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122534610] [2021-12-18 16:30:22,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:30:22,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:30:22,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:30:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:30:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:30:22,585 INFO L87 Difference]: Start difference. First operand 3529 states and 4825 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:30:26,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:29,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:31,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:35,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:38,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:40,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:30:40,892 INFO L93 Difference]: Finished difference Result 7730 states and 10688 transitions. [2021-12-18 16:30:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:30:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2021-12-18 16:30:40,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:30:40,910 INFO L225 Difference]: With dead ends: 7730 [2021-12-18 16:30:40,910 INFO L226 Difference]: Without dead ends: 4213 [2021-12-18 16:30:40,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:30:40,926 INFO L933 BasicCegarLoop]: 3846 mSDtfsCounter, 1407 mSDsluCounter, 11113 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 1161 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 14959 SdHoareTripleChecker+Invalid, 3863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1161 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:30:40,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 14959 Invalid, 3863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1161 Valid, 2696 Invalid, 6 Unknown, 0 Unchecked, 18.0s Time] [2021-12-18 16:30:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4213 states. [2021-12-18 16:30:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4213 to 3532. [2021-12-18 16:30:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2437 states have (on average 1.2827246614690193) internal successors, (3126), 2539 states have internal predecessors, (3126), 852 states have call successors, (852), 219 states have call predecessors, (852), 218 states have return successors, (850), 823 states have call predecessors, (850), 850 states have call successors, (850) [2021-12-18 16:30:41,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4828 transitions. [2021-12-18 16:30:41,101 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4828 transitions. Word has length 84 [2021-12-18 16:30:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:30:41,101 INFO L470 AbstractCegarLoop]: Abstraction has 3532 states and 4828 transitions. [2021-12-18 16:30:41,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:30:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4828 transitions. [2021-12-18 16:30:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-18 16:30:41,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:30:41,104 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:30:41,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 16:30:41,104 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:30:41,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:30:41,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1956561009, now seen corresponding path program 1 times [2021-12-18 16:30:41,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:30:41,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208380387] [2021-12-18 16:30:41,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:30:41,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:30:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:30:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:30:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:30:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 16:30:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 16:30:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 16:30:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:30:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:30:41,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:30:41,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208380387] [2021-12-18 16:30:41,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208380387] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:30:41,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:30:41,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:30:41,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783494977] [2021-12-18 16:30:41,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:30:41,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:30:41,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:30:41,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:30:41,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:30:41,608 INFO L87 Difference]: Start difference. First operand 3532 states and 4828 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:30:47,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:49,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:52,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:58,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:01,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:03,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:05,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:06,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:31:06,960 INFO L93 Difference]: Finished difference Result 10216 states and 14043 transitions. [2021-12-18 16:31:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:31:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2021-12-18 16:31:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:31:06,986 INFO L225 Difference]: With dead ends: 10216 [2021-12-18 16:31:06,987 INFO L226 Difference]: Without dead ends: 6696 [2021-12-18 16:31:07,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:31:07,002 INFO L933 BasicCegarLoop]: 3820 mSDtfsCounter, 4171 mSDsluCounter, 14305 mSDsCounter, 0 mSdLazyCounter, 4863 mSolverCounterSat, 2003 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 18125 SdHoareTripleChecker+Invalid, 6873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2003 IncrementalHoareTripleChecker+Valid, 4863 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:31:07,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4500 Valid, 18125 Invalid, 6873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2003 Valid, 4863 Invalid, 7 Unknown, 0 Unchecked, 24.7s Time] [2021-12-18 16:31:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2021-12-18 16:31:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 6174. [2021-12-18 16:31:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 4280 states have (on average 1.2848130841121495) internal successors, (5499), 4436 states have internal predecessors, (5499), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:31:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 8518 transitions. [2021-12-18 16:31:07,388 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 8518 transitions. Word has length 84 [2021-12-18 16:31:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:31:07,389 INFO L470 AbstractCegarLoop]: Abstraction has 6174 states and 8518 transitions. [2021-12-18 16:31:07,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:31:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 8518 transitions. [2021-12-18 16:31:07,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-18 16:31:07,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:31:07,392 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:31:07,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 16:31:07,392 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:31:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:31:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1606202226, now seen corresponding path program 1 times [2021-12-18 16:31:07,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:31:07,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378617749] [2021-12-18 16:31:07,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:07,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:31:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:31:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:31:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:31:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:31:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:31:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:31:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:31:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:31:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:31:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:31:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:31:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:31:07,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:31:07,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378617749] [2021-12-18 16:31:07,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378617749] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:31:07,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:31:07,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:31:07,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78757471] [2021-12-18 16:31:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:31:07,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:31:07,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:31:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:31:07,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:31:07,719 INFO L87 Difference]: Start difference. First operand 6174 states and 8518 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 16:31:10,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:13,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:15,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:23,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:26,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:28,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:30,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:34,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:37,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:31:39,420 INFO L93 Difference]: Finished difference Result 6515 states and 9032 transitions. [2021-12-18 16:31:39,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:31:39,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2021-12-18 16:31:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:31:39,442 INFO L225 Difference]: With dead ends: 6515 [2021-12-18 16:31:39,442 INFO L226 Difference]: Without dead ends: 6513 [2021-12-18 16:31:39,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:31:39,446 INFO L933 BasicCegarLoop]: 2990 mSDtfsCounter, 7831 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 5675 mSolverCounterSat, 4732 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 10415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4732 IncrementalHoareTripleChecker+Valid, 5675 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:31:39,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8033 Valid, 5829 Invalid, 10415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4732 Valid, 5675 Invalid, 8 Unknown, 0 Unchecked, 31.1s Time] [2021-12-18 16:31:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6513 states. [2021-12-18 16:31:39,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6513 to 6172. [2021-12-18 16:31:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 4279 states have (on average 1.2846459453143257) internal successors, (5497), 4434 states have internal predecessors, (5497), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:31:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 8516 transitions. [2021-12-18 16:31:39,750 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 8516 transitions. Word has length 89 [2021-12-18 16:31:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:31:39,751 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 8516 transitions. [2021-12-18 16:31:39,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 16:31:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 8516 transitions. [2021-12-18 16:31:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 16:31:39,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:31:39,753 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:31:39,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 16:31:39,753 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:31:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:31:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash 281647035, now seen corresponding path program 1 times [2021-12-18 16:31:39,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:31:39,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188785914] [2021-12-18 16:31:39,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:39,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:31:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:31:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:31:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:31:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:31:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:31:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:31:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:31:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:31:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:31:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:31:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:31:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:31:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:31:40,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:31:40,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188785914] [2021-12-18 16:31:40,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188785914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:31:40,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:31:40,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:31:40,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829078477] [2021-12-18 16:31:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:31:40,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:31:40,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:31:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:31:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:31:40,102 INFO L87 Difference]: Start difference. First operand 6172 states and 8516 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:31:44,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:47,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:54,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:57,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:00,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:02,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:04,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:08,933 INFO L93 Difference]: Finished difference Result 6513 states and 9030 transitions. [2021-12-18 16:32:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:32:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-18 16:32:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:08,977 INFO L225 Difference]: With dead ends: 6513 [2021-12-18 16:32:08,977 INFO L226 Difference]: Without dead ends: 6511 [2021-12-18 16:32:08,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:32:08,980 INFO L933 BasicCegarLoop]: 3022 mSDtfsCounter, 7742 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 5706 mSolverCounterSat, 4709 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7941 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 10422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4709 IncrementalHoareTripleChecker+Valid, 5706 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:08,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7941 Valid, 5870 Invalid, 10422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4709 Valid, 5706 Invalid, 7 Unknown, 0 Unchecked, 28.2s Time] [2021-12-18 16:32:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2021-12-18 16:32:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 6170. [2021-12-18 16:32:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4278 states have (on average 1.2844787283777466) internal successors, (5495), 4432 states have internal predecessors, (5495), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:32:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8514 transitions. [2021-12-18 16:32:09,292 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8514 transitions. Word has length 95 [2021-12-18 16:32:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:09,293 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 8514 transitions. [2021-12-18 16:32:09,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:32:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8514 transitions. [2021-12-18 16:32:09,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-18 16:32:09,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:09,296 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2021-12-18 16:32:09,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 16:32:09,297 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:32:09,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1891072627, now seen corresponding path program 1 times [2021-12-18 16:32:09,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:09,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162549615] [2021-12-18 16:32:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:09,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:32:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:32:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:32:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 16:32:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:32:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 16:32:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:32:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-18 16:32:09,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:09,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162549615] [2021-12-18 16:32:09,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162549615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:09,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:09,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:32:09,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62830256] [2021-12-18 16:32:09,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:09,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:32:09,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:32:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:32:09,647 INFO L87 Difference]: Start difference. First operand 6170 states and 8514 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:32:14,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:19,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:22,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:24,417 INFO L93 Difference]: Finished difference Result 12617 states and 17640 transitions. [2021-12-18 16:32:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:32:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2021-12-18 16:32:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:24,458 INFO L225 Difference]: With dead ends: 12617 [2021-12-18 16:32:24,458 INFO L226 Difference]: Without dead ends: 6511 [2021-12-18 16:32:24,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:32:24,487 INFO L933 BasicCegarLoop]: 3421 mSDtfsCounter, 3879 mSDsluCounter, 9668 mSDsCounter, 0 mSdLazyCounter, 4301 mSolverCounterSat, 1094 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4272 SdHoareTripleChecker+Valid, 13089 SdHoareTripleChecker+Invalid, 5398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 4301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:24,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4272 Valid, 13089 Invalid, 5398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1094 Valid, 4301 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2021-12-18 16:32:24,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2021-12-18 16:32:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 6170. [2021-12-18 16:32:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4278 states have (on average 1.2835437120149602) internal successors, (5491), 4432 states have internal predecessors, (5491), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:32:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8510 transitions. [2021-12-18 16:32:24,864 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8510 transitions. Word has length 100 [2021-12-18 16:32:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:24,865 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 8510 transitions. [2021-12-18 16:32:24,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:32:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8510 transitions. [2021-12-18 16:32:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-18 16:32:24,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:24,868 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2021-12-18 16:32:24,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 16:32:24,868 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:32:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1891132209, now seen corresponding path program 1 times [2021-12-18 16:32:24,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:24,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006066138] [2021-12-18 16:32:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:24,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:32:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:32:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:32:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 16:32:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:32:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 16:32:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:32:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-18 16:32:25,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:25,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006066138] [2021-12-18 16:32:25,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006066138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:25,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:25,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:32:25,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851212587] [2021-12-18 16:32:25,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:25,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:32:25,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:25,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:32:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:32:25,170 INFO L87 Difference]: Start difference. First operand 6170 states and 8510 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 16:32:29,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:32,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:35,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:36,405 INFO L93 Difference]: Finished difference Result 6513 states and 9033 transitions. [2021-12-18 16:32:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:32:36,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2021-12-18 16:32:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:36,436 INFO L225 Difference]: With dead ends: 6513 [2021-12-18 16:32:36,436 INFO L226 Difference]: Without dead ends: 6511 [2021-12-18 16:32:36,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:32:36,442 INFO L933 BasicCegarLoop]: 3386 mSDtfsCounter, 693 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 685 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 10798 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:36,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 10798 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1920 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2021-12-18 16:32:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2021-12-18 16:32:36,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 6172. [2021-12-18 16:32:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 4280 states have (on average 1.2824766355140187) internal successors, (5489), 4434 states have internal predecessors, (5489), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:32:36,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 8508 transitions. [2021-12-18 16:32:36,802 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 8508 transitions. Word has length 100 [2021-12-18 16:32:36,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:36,803 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 8508 transitions. [2021-12-18 16:32:36,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 16:32:36,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 8508 transitions. [2021-12-18 16:32:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-18 16:32:36,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:36,805 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:32:36,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 16:32:36,806 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:32:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1902766992, now seen corresponding path program 1 times [2021-12-18 16:32:36,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:36,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45018041] [2021-12-18 16:32:36,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:36,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:32:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:32:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:32:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:32:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:32:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:32:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:32:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:32:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:32:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:32:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:32:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:32:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:32:37,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:37,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45018041] [2021-12-18 16:32:37,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45018041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:37,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:37,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:32:37,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032974534] [2021-12-18 16:32:37,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:37,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:32:37,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:37,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:32:37,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:32:37,156 INFO L87 Difference]: Start difference. First operand 6172 states and 8508 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:32:41,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:43,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:47,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:55,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:59,229 INFO L93 Difference]: Finished difference Result 6511 states and 9021 transitions. [2021-12-18 16:32:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:32:59,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-12-18 16:32:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:59,250 INFO L225 Difference]: With dead ends: 6511 [2021-12-18 16:32:59,250 INFO L226 Difference]: Without dead ends: 6509 [2021-12-18 16:32:59,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:32:59,253 INFO L933 BasicCegarLoop]: 3009 mSDtfsCounter, 7749 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 5694 mSolverCounterSat, 4723 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7947 SdHoareTripleChecker+Valid, 5855 SdHoareTripleChecker+Invalid, 10421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4723 IncrementalHoareTripleChecker+Valid, 5694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:59,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7947 Valid, 5855 Invalid, 10421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4723 Valid, 5694 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time] [2021-12-18 16:32:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2021-12-18 16:32:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 6170. [2021-12-18 16:32:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4279 states have (on average 1.2823089506894134) internal successors, (5487), 4432 states have internal predecessors, (5487), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:32:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8506 transitions. [2021-12-18 16:32:59,584 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8506 transitions. Word has length 101 [2021-12-18 16:32:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:59,584 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 8506 transitions. [2021-12-18 16:32:59,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:32:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8506 transitions. [2021-12-18 16:32:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-18 16:32:59,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:59,587 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2021-12-18 16:32:59,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 16:32:59,587 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:32:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:59,588 INFO L85 PathProgramCache]: Analyzing trace with hash -748861897, now seen corresponding path program 1 times [2021-12-18 16:32:59,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:59,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496669932] [2021-12-18 16:32:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:59,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:32:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:32:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:32:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 16:32:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:32:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 16:32:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:32:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-18 16:32:59,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:59,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496669932] [2021-12-18 16:32:59,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496669932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:59,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:59,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 16:32:59,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775433941] [2021-12-18 16:32:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:59,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 16:32:59,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 16:32:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 16:32:59,885 INFO L87 Difference]: Start difference. First operand 6170 states and 8506 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:33:05,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:07,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:08,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:33:08,474 INFO L93 Difference]: Finished difference Result 12605 states and 17610 transitions. [2021-12-18 16:33:08,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 16:33:08,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2021-12-18 16:33:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:33:08,500 INFO L225 Difference]: With dead ends: 12605 [2021-12-18 16:33:08,500 INFO L226 Difference]: Without dead ends: 6499 [2021-12-18 16:33:08,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:33:08,562 INFO L933 BasicCegarLoop]: 3432 mSDtfsCounter, 3831 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 1086 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:33:08,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4225 Valid, 5594 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 1031 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-12-18 16:33:08,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-12-18 16:33:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 6162. [2021-12-18 16:33:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6162 states, 4271 states have (on average 1.2809646452821353) internal successors, (5471), 4424 states have internal predecessors, (5471), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:33:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6162 states to 6162 states and 8490 transitions. [2021-12-18 16:33:08,917 INFO L78 Accepts]: Start accepts. Automaton has 6162 states and 8490 transitions. Word has length 104 [2021-12-18 16:33:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:33:08,917 INFO L470 AbstractCegarLoop]: Abstraction has 6162 states and 8490 transitions. [2021-12-18 16:33:08,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:33:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6162 states and 8490 transitions. [2021-12-18 16:33:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-18 16:33:08,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:33:08,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1] [2021-12-18 16:33:08,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 16:33:08,920 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:33:08,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:33:08,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1960542297, now seen corresponding path program 1 times [2021-12-18 16:33:08,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:33:08,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657214620] [2021-12-18 16:33:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:33:08,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:33:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:33:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:33:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:33:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:33:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:33:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:33:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:33:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:33:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:33:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:33:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:33:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:33:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:33:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:33:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:33:09,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:33:09,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657214620] [2021-12-18 16:33:09,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657214620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:33:09,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:33:09,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:33:09,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31428122] [2021-12-18 16:33:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:33:09,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:33:09,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:33:09,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:33:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:33:09,211 INFO L87 Difference]: Start difference. First operand 6162 states and 8490 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:33:13,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:15,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:18,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:25,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:28,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:30,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:33,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:36,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:39,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:41,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:33:43,288 INFO L93 Difference]: Finished difference Result 6499 states and 9002 transitions. [2021-12-18 16:33:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:33:43,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2021-12-18 16:33:43,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:33:43,305 INFO L225 Difference]: With dead ends: 6499 [2021-12-18 16:33:43,306 INFO L226 Difference]: Without dead ends: 6497 [2021-12-18 16:33:43,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:33:43,309 INFO L933 BasicCegarLoop]: 2980 mSDtfsCounter, 7788 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 5664 mSolverCounterSat, 4733 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7987 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 10407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4733 IncrementalHoareTripleChecker+Valid, 5664 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:33:43,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7987 Valid, 5818 Invalid, 10407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4733 Valid, 5664 Invalid, 10 Unknown, 0 Unchecked, 33.5s Time] [2021-12-18 16:33:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2021-12-18 16:33:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6160. [2021-12-18 16:33:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6160 states, 4270 states have (on average 1.2807962529274004) internal successors, (5469), 4422 states have internal predecessors, (5469), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:33:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6160 states to 6160 states and 8488 transitions. [2021-12-18 16:33:43,678 INFO L78 Accepts]: Start accepts. Automaton has 6160 states and 8488 transitions. Word has length 107 [2021-12-18 16:33:43,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:33:43,679 INFO L470 AbstractCegarLoop]: Abstraction has 6160 states and 8488 transitions. [2021-12-18 16:33:43,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:33:43,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6160 states and 8488 transitions. [2021-12-18 16:33:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-18 16:33:43,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:33:43,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-12-18 16:33:43,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 16:33:43,682 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:33:43,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:33:43,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1409339844, now seen corresponding path program 1 times [2021-12-18 16:33:43,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:33:43,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374828470] [2021-12-18 16:33:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:33:43,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:33:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:33:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:33:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:33:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:33:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:33:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:33:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:33:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:33:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:33:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:33:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:33:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:33:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:33:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:33:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:33:43,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:33:43,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374828470] [2021-12-18 16:33:43,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374828470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:33:43,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:33:43,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:33:43,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141698353] [2021-12-18 16:33:43,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:33:43,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:33:43,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:33:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:33:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:33:43,948 INFO L87 Difference]: Start difference. First operand 6160 states and 8488 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:33:48,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:50,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:54,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:00,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:04,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:08,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:34:09,929 INFO L93 Difference]: Finished difference Result 6497 states and 9000 transitions. [2021-12-18 16:34:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:34:09,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2021-12-18 16:34:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:34:09,945 INFO L225 Difference]: With dead ends: 6497 [2021-12-18 16:34:09,945 INFO L226 Difference]: Without dead ends: 6495 [2021-12-18 16:34:09,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:34:09,948 INFO L933 BasicCegarLoop]: 3001 mSDtfsCounter, 7717 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 4721 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7915 SdHoareTripleChecker+Valid, 5844 SdHoareTripleChecker+Invalid, 10416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4721 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:34:09,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7915 Valid, 5844 Invalid, 10416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4721 Valid, 5689 Invalid, 6 Unknown, 0 Unchecked, 25.4s Time] [2021-12-18 16:34:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6495 states. [2021-12-18 16:34:10,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6495 to 6158. [2021-12-18 16:34:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6158 states, 4269 states have (on average 1.2806277816818927) internal successors, (5467), 4420 states have internal predecessors, (5467), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:34:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 8486 transitions. [2021-12-18 16:34:10,259 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 8486 transitions. Word has length 109 [2021-12-18 16:34:10,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:34:10,260 INFO L470 AbstractCegarLoop]: Abstraction has 6158 states and 8486 transitions. [2021-12-18 16:34:10,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:34:10,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 8486 transitions. [2021-12-18 16:34:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 16:34:10,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:34:10,262 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:34:10,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 16:34:10,263 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:34:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:34:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -524885560, now seen corresponding path program 1 times [2021-12-18 16:34:10,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:34:10,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39492181] [2021-12-18 16:34:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:10,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:34:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:34:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:34:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:34:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:34:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:34:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:34:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:34:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:34:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:34:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:34:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:34:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:34:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:34:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:34:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:34:10,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:34:10,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39492181] [2021-12-18 16:34:10,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39492181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:34:10,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:34:10,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:34:10,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976873626] [2021-12-18 16:34:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:34:10,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:34:10,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:34:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:34:10,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:34:10,635 INFO L87 Difference]: Start difference. First operand 6158 states and 8486 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:34:14,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:17,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:20,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:27,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:34:31,326 INFO L93 Difference]: Finished difference Result 6495 states and 8998 transitions. [2021-12-18 16:34:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:34:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 115 [2021-12-18 16:34:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:34:31,344 INFO L225 Difference]: With dead ends: 6495 [2021-12-18 16:34:31,344 INFO L226 Difference]: Without dead ends: 6493 [2021-12-18 16:34:31,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:34:31,348 INFO L933 BasicCegarLoop]: 3007 mSDtfsCounter, 7693 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 5698 mSolverCounterSat, 4710 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7890 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 10412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4710 IncrementalHoareTripleChecker+Valid, 5698 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:34:31,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7890 Valid, 5852 Invalid, 10412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4710 Valid, 5698 Invalid, 4 Unknown, 0 Unchecked, 20.1s Time] [2021-12-18 16:34:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2021-12-18 16:34:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6156. [2021-12-18 16:34:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6156 states, 4268 states have (on average 1.2804592314901593) internal successors, (5465), 4418 states have internal predecessors, (5465), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:34:31,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 8484 transitions. [2021-12-18 16:34:31,681 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 8484 transitions. Word has length 115 [2021-12-18 16:34:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:34:31,682 INFO L470 AbstractCegarLoop]: Abstraction has 6156 states and 8484 transitions. [2021-12-18 16:34:31,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:34:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 8484 transitions. [2021-12-18 16:34:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-18 16:34:31,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:34:31,685 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:34:31,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 16:34:31,685 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:34:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:34:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1355040608, now seen corresponding path program 1 times [2021-12-18 16:34:31,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:34:31,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340735040] [2021-12-18 16:34:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:31,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:34:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:34:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:34:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:34:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:34:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:34:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:34:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:34:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:34:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:34:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:34:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:34:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:34:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:34:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:34:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:34:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:34:31,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:34:31,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340735040] [2021-12-18 16:34:31,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340735040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:34:31,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:34:31,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:34:31,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812465712] [2021-12-18 16:34:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:34:31,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:34:31,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:34:31,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:34:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:34:31,998 INFO L87 Difference]: Start difference. First operand 6156 states and 8484 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:34:36,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:39,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:48,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:50,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:53,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:34:55,118 INFO L93 Difference]: Finished difference Result 6485 states and 8992 transitions. [2021-12-18 16:34:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:34:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2021-12-18 16:34:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:34:55,134 INFO L225 Difference]: With dead ends: 6485 [2021-12-18 16:34:55,134 INFO L226 Difference]: Without dead ends: 6483 [2021-12-18 16:34:55,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:34:55,137 INFO L933 BasicCegarLoop]: 2993 mSDtfsCounter, 6530 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 4780 mSolverCounterSat, 4114 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6725 SdHoareTripleChecker+Valid, 5725 SdHoareTripleChecker+Invalid, 8899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4114 IncrementalHoareTripleChecker+Valid, 4780 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:34:55,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6725 Valid, 5725 Invalid, 8899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4114 Valid, 4780 Invalid, 5 Unknown, 0 Unchecked, 22.5s Time] [2021-12-18 16:34:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-12-18 16:34:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 6154. [2021-12-18 16:34:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 4267 states have (on average 1.2802906022966956) internal successors, (5463), 4416 states have internal predecessors, (5463), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:34:55,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 8482 transitions. [2021-12-18 16:34:55,410 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 8482 transitions. Word has length 121 [2021-12-18 16:34:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:34:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 8482 transitions. [2021-12-18 16:34:55,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:34:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 8482 transitions. [2021-12-18 16:34:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-18 16:34:55,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:34:55,414 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:34:55,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 16:34:55,414 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:34:55,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:34:55,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1776164046, now seen corresponding path program 1 times [2021-12-18 16:34:55,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:34:55,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343285399] [2021-12-18 16:34:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:55,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:34:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:34:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:34:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:34:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:34:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:34:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:34:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:34:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:34:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:34:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:34:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:34:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:34:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:34:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:34:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:34:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:34:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:34:55,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:34:55,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343285399] [2021-12-18 16:34:55,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343285399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:34:55,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:34:55,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:34:55,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818549067] [2021-12-18 16:34:55,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:34:55,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:34:55,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:34:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:34:55,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:34:55,709 INFO L87 Difference]: Start difference. First operand 6154 states and 8482 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:35:00,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:02,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:09,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:13,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:15,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:17,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:22,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:35:23,972 INFO L93 Difference]: Finished difference Result 6491 states and 8994 transitions. [2021-12-18 16:35:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:35:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-12-18 16:35:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:35:23,985 INFO L225 Difference]: With dead ends: 6491 [2021-12-18 16:35:23,985 INFO L226 Difference]: Without dead ends: 6489 [2021-12-18 16:35:23,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:35:23,987 INFO L933 BasicCegarLoop]: 2967 mSDtfsCounter, 7767 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 5655 mSolverCounterSat, 4739 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7962 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 10401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4739 IncrementalHoareTripleChecker+Valid, 5655 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:35:23,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7962 Valid, 5807 Invalid, 10401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4739 Valid, 5655 Invalid, 7 Unknown, 0 Unchecked, 27.6s Time] [2021-12-18 16:35:23,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6489 states. [2021-12-18 16:35:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6489 to 6152. [2021-12-18 16:35:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6152 states, 4266 states have (on average 1.2801218940459447) internal successors, (5461), 4414 states have internal predecessors, (5461), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:35:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6152 states to 6152 states and 8480 transitions. [2021-12-18 16:35:24,287 INFO L78 Accepts]: Start accepts. Automaton has 6152 states and 8480 transitions. Word has length 127 [2021-12-18 16:35:24,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:35:24,288 INFO L470 AbstractCegarLoop]: Abstraction has 6152 states and 8480 transitions. [2021-12-18 16:35:24,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:35:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6152 states and 8480 transitions. [2021-12-18 16:35:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 16:35:24,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:35:24,292 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:35:24,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 16:35:24,292 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:35:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:35:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash 522326210, now seen corresponding path program 1 times [2021-12-18 16:35:24,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:35:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813158094] [2021-12-18 16:35:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:35:24,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:35:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:35:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:35:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:35:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:35:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:35:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:35:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:35:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:35:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:35:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:35:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:35:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:35:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:35:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:35:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:35:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:35:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:35:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:35:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:24,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:35:24,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:35:24,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813158094] [2021-12-18 16:35:24,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813158094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:35:24,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:35:24,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:35:24,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681914370] [2021-12-18 16:35:24,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:35:24,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:35:24,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:35:24,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:35:24,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:35:24,642 INFO L87 Difference]: Start difference. First operand 6152 states and 8480 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:35:28,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:31,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:39,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:42,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:46,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:35:47,742 INFO L93 Difference]: Finished difference Result 6489 states and 8992 transitions. [2021-12-18 16:35:47,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:35:47,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2021-12-18 16:35:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:35:47,755 INFO L225 Difference]: With dead ends: 6489 [2021-12-18 16:35:47,755 INFO L226 Difference]: Without dead ends: 6487 [2021-12-18 16:35:47,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:35:47,757 INFO L933 BasicCegarLoop]: 2989 mSDtfsCounter, 7695 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 5675 mSolverCounterSat, 4719 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7889 SdHoareTripleChecker+Valid, 5836 SdHoareTripleChecker+Invalid, 10399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4719 IncrementalHoareTripleChecker+Valid, 5675 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:35:47,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7889 Valid, 5836 Invalid, 10399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4719 Valid, 5675 Invalid, 5 Unknown, 0 Unchecked, 22.5s Time] [2021-12-18 16:35:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6487 states. [2021-12-18 16:35:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 6150. [2021-12-18 16:35:48,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 4265 states have (on average 1.2799531066822978) internal successors, (5459), 4412 states have internal predecessors, (5459), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:35:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8478 transitions. [2021-12-18 16:35:48,036 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8478 transitions. Word has length 133 [2021-12-18 16:35:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:35:48,037 INFO L470 AbstractCegarLoop]: Abstraction has 6150 states and 8478 transitions. [2021-12-18 16:35:48,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:35:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8478 transitions. [2021-12-18 16:35:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-18 16:35:48,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:35:48,040 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:35:48,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 16:35:48,040 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:35:48,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:35:48,040 INFO L85 PathProgramCache]: Analyzing trace with hash 785275056, now seen corresponding path program 1 times [2021-12-18 16:35:48,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:35:48,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358654779] [2021-12-18 16:35:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:35:48,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:35:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:35:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:35:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:35:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:35:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:35:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:35:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:35:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:35:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:35:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:35:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:35:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:35:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:35:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:35:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:35:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:35:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:35:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:35:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:35:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:35:48,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:35:48,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358654779] [2021-12-18 16:35:48,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358654779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:35:48,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:35:48,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:35:48,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872321891] [2021-12-18 16:35:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:35:48,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:35:48,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:35:48,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:35:48,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:35:48,379 INFO L87 Difference]: Start difference. First operand 6150 states and 8478 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:35:52,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:54,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:58,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:04,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:08,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:10,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:12,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:15,574 INFO L93 Difference]: Finished difference Result 6487 states and 8990 transitions. [2021-12-18 16:36:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:15,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2021-12-18 16:36:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:15,588 INFO L225 Difference]: With dead ends: 6487 [2021-12-18 16:36:15,588 INFO L226 Difference]: Without dead ends: 6485 [2021-12-18 16:36:15,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:36:15,591 INFO L933 BasicCegarLoop]: 2997 mSDtfsCounter, 7660 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 5692 mSolverCounterSat, 4703 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7853 SdHoareTripleChecker+Valid, 5845 SdHoareTripleChecker+Invalid, 10402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4703 IncrementalHoareTripleChecker+Valid, 5692 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:15,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7853 Valid, 5845 Invalid, 10402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4703 Valid, 5692 Invalid, 7 Unknown, 0 Unchecked, 26.6s Time] [2021-12-18 16:36:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6485 states. [2021-12-18 16:36:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6148. [2021-12-18 16:36:15,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 4264 states have (on average 1.2797842401500938) internal successors, (5457), 4410 states have internal predecessors, (5457), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:36:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8476 transitions. [2021-12-18 16:36:15,914 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8476 transitions. Word has length 139 [2021-12-18 16:36:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:15,915 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 8476 transitions. [2021-12-18 16:36:15,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:36:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8476 transitions. [2021-12-18 16:36:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-18 16:36:15,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:15,918 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:15,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 16:36:15,918 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:36:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1138965898, now seen corresponding path program 1 times [2021-12-18 16:36:15,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:15,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079984400] [2021-12-18 16:36:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:36:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:36:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:36:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:36:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:36:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:36:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:36:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:36:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:36:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:36:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:36:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:36:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:36:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:36:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:36:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:36:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:36:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:36:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:36:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:36:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:36:16,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:16,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079984400] [2021-12-18 16:36:16,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079984400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:16,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:36:16,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:36:16,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205866127] [2021-12-18 16:36:16,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:16,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:36:16,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:36:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:36:16,255 INFO L87 Difference]: Start difference. First operand 6148 states and 8476 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:36:20,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:22,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:26,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:33,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:37,720 INFO L93 Difference]: Finished difference Result 6485 states and 8988 transitions. [2021-12-18 16:36:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2021-12-18 16:36:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:37,738 INFO L225 Difference]: With dead ends: 6485 [2021-12-18 16:36:37,739 INFO L226 Difference]: Without dead ends: 6483 [2021-12-18 16:36:37,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:36:37,742 INFO L933 BasicCegarLoop]: 2962 mSDtfsCounter, 7743 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 5643 mSolverCounterSat, 4748 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7935 SdHoareTripleChecker+Valid, 5802 SdHoareTripleChecker+Invalid, 10395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4748 IncrementalHoareTripleChecker+Valid, 5643 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:37,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7935 Valid, 5802 Invalid, 10395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4748 Valid, 5643 Invalid, 4 Unknown, 0 Unchecked, 20.8s Time] [2021-12-18 16:36:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-12-18 16:36:38,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 6146. [2021-12-18 16:36:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6146 states, 4263 states have (on average 1.2796152943936194) internal successors, (5455), 4408 states have internal predecessors, (5455), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:36:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6146 states to 6146 states and 8474 transitions. [2021-12-18 16:36:38,065 INFO L78 Accepts]: Start accepts. Automaton has 6146 states and 8474 transitions. Word has length 145 [2021-12-18 16:36:38,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:38,065 INFO L470 AbstractCegarLoop]: Abstraction has 6146 states and 8474 transitions. [2021-12-18 16:36:38,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:36:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6146 states and 8474 transitions. [2021-12-18 16:36:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-18 16:36:38,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:38,068 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:38,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 16:36:38,068 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:36:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1470697878, now seen corresponding path program 1 times [2021-12-18 16:36:38,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:38,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205970305] [2021-12-18 16:36:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:38,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:36:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:36:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:36:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:36:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:36:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:36:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:36:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:36:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:36:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:36:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:36:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:36:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:36:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:36:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:36:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:36:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:36:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:36:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:36:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:36:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:36:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:36:38,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:38,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205970305] [2021-12-18 16:36:38,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205970305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:38,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:36:38,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:36:38,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666038833] [2021-12-18 16:36:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:38,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:36:38,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:36:38,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:36:38,468 INFO L87 Difference]: Start difference. First operand 6146 states and 8474 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:36:42,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:44,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:48,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:56,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:58,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:00,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:04,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:37:06,834 INFO L93 Difference]: Finished difference Result 6483 states and 8986 transitions. [2021-12-18 16:37:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:37:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151 [2021-12-18 16:37:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:37:06,848 INFO L225 Difference]: With dead ends: 6483 [2021-12-18 16:37:06,848 INFO L226 Difference]: Without dead ends: 6481 [2021-12-18 16:37:06,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:37:06,850 INFO L933 BasicCegarLoop]: 2972 mSDtfsCounter, 7702 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 5659 mSolverCounterSat, 4732 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7893 SdHoareTripleChecker+Valid, 5813 SdHoareTripleChecker+Invalid, 10398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4732 IncrementalHoareTripleChecker+Valid, 5659 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:37:06,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7893 Valid, 5813 Invalid, 10398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4732 Valid, 5659 Invalid, 7 Unknown, 0 Unchecked, 27.7s Time] [2021-12-18 16:37:06,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6481 states. [2021-12-18 16:37:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6481 to 6144. [2021-12-18 16:37:07,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6144 states, 4262 states have (on average 1.2794462693571094) internal successors, (5453), 4406 states have internal predecessors, (5453), 1503 states have call successors, (1503), 366 states have call predecessors, (1503), 366 states have return successors, (1516), 1459 states have call predecessors, (1516), 1501 states have call successors, (1516) [2021-12-18 16:37:07,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6144 states to 6144 states and 8472 transitions. [2021-12-18 16:37:07,183 INFO L78 Accepts]: Start accepts. Automaton has 6144 states and 8472 transitions. Word has length 151 [2021-12-18 16:37:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:37:07,183 INFO L470 AbstractCegarLoop]: Abstraction has 6144 states and 8472 transitions. [2021-12-18 16:37:07,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:37:07,184 INFO L276 IsEmpty]: Start isEmpty. Operand 6144 states and 8472 transitions. [2021-12-18 16:37:07,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-18 16:37:07,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:37:07,187 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:37:07,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 16:37:07,188 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:37:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:37:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1562477496, now seen corresponding path program 1 times [2021-12-18 16:37:07,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:37:07,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514696193] [2021-12-18 16:37:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:37:07,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:37:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:37:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:37:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:37:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:37:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:37:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:37:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:37:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 16:37:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:37:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:37:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:37:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 16:37:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:37:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:37:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 16:37:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:37:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:37:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:37:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 16:37:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:37:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:37:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 16:37:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 16:37:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 16:37:07,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:37:07,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514696193] [2021-12-18 16:37:07,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514696193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:37:07,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:37:07,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:37:07,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106377107] [2021-12-18 16:37:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:37:07,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:37:07,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:37:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:37:07,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:37:07,757 INFO L87 Difference]: Start difference. First operand 6144 states and 8472 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:37:13,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:15,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:17,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:27,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:31,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:36,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:39,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:41,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:43,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:47,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:37:49,757 INFO L93 Difference]: Finished difference Result 9077 states and 12707 transitions. [2021-12-18 16:37:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 16:37:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 179 [2021-12-18 16:37:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:37:49,791 INFO L225 Difference]: With dead ends: 9077 [2021-12-18 16:37:49,791 INFO L226 Difference]: Without dead ends: 9075 [2021-12-18 16:37:49,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:37:49,797 INFO L933 BasicCegarLoop]: 3131 mSDtfsCounter, 8524 mSDsluCounter, 4976 mSDsCounter, 0 mSdLazyCounter, 9584 mSolverCounterSat, 5667 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8705 SdHoareTripleChecker+Valid, 8107 SdHoareTripleChecker+Invalid, 15261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5667 IncrementalHoareTripleChecker+Valid, 9584 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:37:49,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8705 Valid, 8107 Invalid, 15261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5667 Valid, 9584 Invalid, 10 Unknown, 0 Unchecked, 41.0s Time] [2021-12-18 16:37:49,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9075 states. [2021-12-18 16:37:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9075 to 8650. [2021-12-18 16:37:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8650 states, 5986 states have (on average 1.2768125626461744) internal successors, (7643), 6167 states have internal predecessors, (7643), 2140 states have call successors, (2140), 514 states have call predecessors, (2140), 511 states have return successors, (2314), 2079 states have call predecessors, (2314), 2138 states have call successors, (2314) [2021-12-18 16:37:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8650 states to 8650 states and 12097 transitions. [2021-12-18 16:37:50,343 INFO L78 Accepts]: Start accepts. Automaton has 8650 states and 12097 transitions. Word has length 179 [2021-12-18 16:37:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:37:50,344 INFO L470 AbstractCegarLoop]: Abstraction has 8650 states and 12097 transitions. [2021-12-18 16:37:50,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:37:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 8650 states and 12097 transitions. [2021-12-18 16:37:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-18 16:37:50,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:37:50,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:37:50,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 16:37:50,367 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:37:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:37:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1420395699, now seen corresponding path program 1 times [2021-12-18 16:37:50,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:37:50,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794196529] [2021-12-18 16:37:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:37:50,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:37:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:37:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:37:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:37:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:37:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:37:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:37:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:37:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:37:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:37:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:37:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:37:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:37:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:37:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:37:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:37:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:37:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:37:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:37:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:37:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:37:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:37:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:37:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:37:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:37:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:37:51,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:37:51,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794196529] [2021-12-18 16:37:51,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794196529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:37:51,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:37:51,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:37:51,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844166834] [2021-12-18 16:37:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:37:51,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:37:51,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:37:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:37:51,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:37:51,065 INFO L87 Difference]: Start difference. First operand 8650 states and 12097 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:37:55,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:37:58,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:05,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:08,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:11,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:14,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:18,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:38:18,167 INFO L93 Difference]: Finished difference Result 9021 states and 12642 transitions. [2021-12-18 16:38:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:38:18,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2021-12-18 16:38:18,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:38:18,199 INFO L225 Difference]: With dead ends: 9021 [2021-12-18 16:38:18,199 INFO L226 Difference]: Without dead ends: 9019 [2021-12-18 16:38:18,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:38:18,206 INFO L933 BasicCegarLoop]: 2967 mSDtfsCounter, 7700 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 5659 mSolverCounterSat, 4733 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7890 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 10398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4733 IncrementalHoareTripleChecker+Valid, 5659 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:38:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7890 Valid, 5807 Invalid, 10398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4733 Valid, 5659 Invalid, 6 Unknown, 0 Unchecked, 26.2s Time] [2021-12-18 16:38:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9019 states. [2021-12-18 16:38:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9019 to 8648. [2021-12-18 16:38:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 5985 states have (on average 1.2765246449456975) internal successors, (7640), 6165 states have internal predecessors, (7640), 2140 states have call successors, (2140), 514 states have call predecessors, (2140), 511 states have return successors, (2314), 2079 states have call predecessors, (2314), 2138 states have call successors, (2314) [2021-12-18 16:38:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 12094 transitions. [2021-12-18 16:38:18,786 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 12094 transitions. Word has length 157 [2021-12-18 16:38:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:38:18,786 INFO L470 AbstractCegarLoop]: Abstraction has 8648 states and 12094 transitions. [2021-12-18 16:38:18,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:38:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 12094 transitions. [2021-12-18 16:38:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 16:38:18,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:38:18,791 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:38:18,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 16:38:18,791 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:38:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:38:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash -243153499, now seen corresponding path program 1 times [2021-12-18 16:38:18,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:38:18,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608346625] [2021-12-18 16:38:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:38:18,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:38:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:38:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:38:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:38:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:38:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:38:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:38:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:38:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:38:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:38:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:38:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:38:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:38:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:38:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:38:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:38:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:38:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:38:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:38:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:38:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:38:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:38:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:38:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:38:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:38:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:38:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:38:19,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:38:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608346625] [2021-12-18 16:38:19,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608346625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:38:19,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:38:19,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:38:19,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681984686] [2021-12-18 16:38:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:38:19,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:38:19,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:38:19,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:38:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:38:19,165 INFO L87 Difference]: Start difference. First operand 8648 states and 12094 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:38:23,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:25,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:35,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:38:40,378 INFO L93 Difference]: Finished difference Result 9019 states and 12639 transitions. [2021-12-18 16:38:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:38:40,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 163 [2021-12-18 16:38:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:38:40,404 INFO L225 Difference]: With dead ends: 9019 [2021-12-18 16:38:40,405 INFO L226 Difference]: Without dead ends: 9017 [2021-12-18 16:38:40,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:38:40,411 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 7644 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 5666 mSolverCounterSat, 4726 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7833 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 10395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4726 IncrementalHoareTripleChecker+Valid, 5666 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:38:40,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7833 Valid, 5829 Invalid, 10395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4726 Valid, 5666 Invalid, 3 Unknown, 0 Unchecked, 20.4s Time] [2021-12-18 16:38:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2021-12-18 16:38:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 8646. [2021-12-18 16:38:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8646 states, 5984 states have (on average 1.2762366310160427) internal successors, (7637), 6163 states have internal predecessors, (7637), 2140 states have call successors, (2140), 514 states have call predecessors, (2140), 511 states have return successors, (2314), 2079 states have call predecessors, (2314), 2138 states have call successors, (2314) [2021-12-18 16:38:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8646 states to 8646 states and 12091 transitions. [2021-12-18 16:38:41,049 INFO L78 Accepts]: Start accepts. Automaton has 8646 states and 12091 transitions. Word has length 163 [2021-12-18 16:38:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:38:41,050 INFO L470 AbstractCegarLoop]: Abstraction has 8646 states and 12091 transitions. [2021-12-18 16:38:41,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:38:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 8646 states and 12091 transitions. [2021-12-18 16:38:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-18 16:38:41,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:38:41,056 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:38:41,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 16:38:41,057 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:38:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:38:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -684271081, now seen corresponding path program 1 times [2021-12-18 16:38:41,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:38:41,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315459643] [2021-12-18 16:38:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:38:41,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:38:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:38:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:38:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:38:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:38:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:38:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:38:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:38:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:38:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:38:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:38:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:38:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:38:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:38:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:38:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:38:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:38:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:38:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:38:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:38:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:38:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:38:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:38:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:38:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:38:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:38:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:38:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:38:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:38:41,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:38:41,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315459643] [2021-12-18 16:38:41,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315459643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:38:41,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:38:41,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:38:41,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679966389] [2021-12-18 16:38:41,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:38:41,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:38:41,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:38:41,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:38:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:38:41,421 INFO L87 Difference]: Start difference. First operand 8646 states and 12091 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 16:38:43,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:46,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:48,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:53,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:38:58,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:02,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:05,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:07,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:10,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:39:13,877 INFO L93 Difference]: Finished difference Result 9017 states and 12636 transitions. [2021-12-18 16:39:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:39:13,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2021-12-18 16:39:13,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:39:13,907 INFO L225 Difference]: With dead ends: 9017 [2021-12-18 16:39:13,908 INFO L226 Difference]: Without dead ends: 9015 [2021-12-18 16:39:13,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:39:13,915 INFO L933 BasicCegarLoop]: 2961 mSDtfsCounter, 7689 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 5648 mSolverCounterSat, 4724 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7878 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 10380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4724 IncrementalHoareTripleChecker+Valid, 5648 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:39:13,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7878 Valid, 5804 Invalid, 10380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4724 Valid, 5648 Invalid, 8 Unknown, 0 Unchecked, 31.5s Time] [2021-12-18 16:39:13,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9015 states. [2021-12-18 16:39:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9015 to 8644. [2021-12-18 16:39:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 5983 states have (on average 1.2759485208089587) internal successors, (7634), 6161 states have internal predecessors, (7634), 2140 states have call successors, (2140), 514 states have call predecessors, (2140), 511 states have return successors, (2314), 2079 states have call predecessors, (2314), 2138 states have call successors, (2314) [2021-12-18 16:39:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 12088 transitions. [2021-12-18 16:39:14,470 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 12088 transitions. Word has length 169 [2021-12-18 16:39:14,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:39:14,471 INFO L470 AbstractCegarLoop]: Abstraction has 8644 states and 12088 transitions. [2021-12-18 16:39:14,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 16:39:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 12088 transitions. [2021-12-18 16:39:14,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 16:39:14,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:39:14,474 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:39:14,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 16:39:14,474 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:39:14,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:39:14,475 INFO L85 PathProgramCache]: Analyzing trace with hash -31119038, now seen corresponding path program 1 times [2021-12-18 16:39:14,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:39:14,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305646386] [2021-12-18 16:39:14,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:39:14,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:39:14,614 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:39:14,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202069818] [2021-12-18 16:39:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:39:14,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:39:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:39:14,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:39:14,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 16:39:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:15,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 4198 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-18 16:39:15,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:39:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-12-18 16:39:16,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:39:16,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:39:16,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305646386] [2021-12-18 16:39:16,443 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:39:16,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202069818] [2021-12-18 16:39:16,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202069818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:39:16,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:39:16,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-18 16:39:16,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157071252] [2021-12-18 16:39:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:39:16,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-18 16:39:16,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:39:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-18 16:39:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:39:16,445 INFO L87 Difference]: Start difference. First operand 8644 states and 12088 transitions. Second operand has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2021-12-18 16:39:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:39:17,640 INFO L93 Difference]: Finished difference Result 13341 states and 18567 transitions. [2021-12-18 16:39:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 16:39:17,641 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 196 [2021-12-18 16:39:17,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:39:17,664 INFO L225 Difference]: With dead ends: 13341 [2021-12-18 16:39:17,665 INFO L226 Difference]: Without dead ends: 4934 [2021-12-18 16:39:17,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2021-12-18 16:39:17,697 INFO L933 BasicCegarLoop]: 3375 mSDtfsCounter, 63 mSDsluCounter, 50404 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 53779 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:39:17,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 53779 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 16:39:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2021-12-18 16:39:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4908. [2021-12-18 16:39:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4908 states, 3389 states have (on average 1.2655650634405429) internal successors, (4289), 3497 states have internal predecessors, (4289), 1197 states have call successors, (1197), 313 states have call predecessors, (1197), 312 states have return successors, (1285), 1158 states have call predecessors, (1285), 1195 states have call successors, (1285) [2021-12-18 16:39:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 6771 transitions. [2021-12-18 16:39:17,993 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 6771 transitions. Word has length 196 [2021-12-18 16:39:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:39:17,994 INFO L470 AbstractCegarLoop]: Abstraction has 4908 states and 6771 transitions. [2021-12-18 16:39:17,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2021-12-18 16:39:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 6771 transitions. [2021-12-18 16:39:17,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 16:39:17,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:39:17,998 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:39:18,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 16:39:18,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:39:18,208 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:39:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:39:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1178903636, now seen corresponding path program 1 times [2021-12-18 16:39:18,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:39:18,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125880011] [2021-12-18 16:39:18,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:39:18,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:39:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:39:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:39:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:39:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:39:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:39:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:39:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:39:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:39:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:39:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:39:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:39:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:39:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:39:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:39:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:39:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:39:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:39:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:39:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:39:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:39:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:39:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:39:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:39:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:39:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:39:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:39:18,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:39:18,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125880011] [2021-12-18 16:39:18,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125880011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:39:18,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:39:18,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:39:18,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96925873] [2021-12-18 16:39:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:39:18,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:39:18,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:39:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:39:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:39:18,542 INFO L87 Difference]: Start difference. First operand 4908 states and 6771 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:39:23,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:25,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:30,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:37,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:40,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:42,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:45,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:39:45,999 INFO L93 Difference]: Finished difference Result 5121 states and 7081 transitions. [2021-12-18 16:39:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:39:46,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2021-12-18 16:39:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:39:46,016 INFO L225 Difference]: With dead ends: 5121 [2021-12-18 16:39:46,016 INFO L226 Difference]: Without dead ends: 5119 [2021-12-18 16:39:46,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:39:46,020 INFO L933 BasicCegarLoop]: 2944 mSDtfsCounter, 7714 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 5623 mSolverCounterSat, 4755 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7902 SdHoareTripleChecker+Valid, 5783 SdHoareTripleChecker+Invalid, 10384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4755 IncrementalHoareTripleChecker+Valid, 5623 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:39:46,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7902 Valid, 5783 Invalid, 10384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4755 Valid, 5623 Invalid, 6 Unknown, 0 Unchecked, 26.8s Time] [2021-12-18 16:39:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2021-12-18 16:39:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 4906. [2021-12-18 16:39:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 3388 states have (on average 1.2650531286894924) internal successors, (4286), 3495 states have internal predecessors, (4286), 1197 states have call successors, (1197), 313 states have call predecessors, (1197), 312 states have return successors, (1285), 1158 states have call predecessors, (1285), 1195 states have call successors, (1285) [2021-12-18 16:39:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 6768 transitions. [2021-12-18 16:39:46,315 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 6768 transitions. Word has length 175 [2021-12-18 16:39:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:39:46,315 INFO L470 AbstractCegarLoop]: Abstraction has 4906 states and 6768 transitions. [2021-12-18 16:39:46,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:39:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 6768 transitions. [2021-12-18 16:39:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 16:39:46,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:39:46,318 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:39:46,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-18 16:39:46,318 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:39:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:39:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 876167076, now seen corresponding path program 1 times [2021-12-18 16:39:46,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:39:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506868450] [2021-12-18 16:39:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:39:46,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:39:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:39:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:39:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:39:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:39:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:39:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 16:39:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 16:39:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:39:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 16:39:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 16:39:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 16:39:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:39:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:39:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:39:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:39:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:39:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:39:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 16:39:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:39:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:39:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:39:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 16:39:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:39:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 16:39:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:39:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 16:39:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:39:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 16:39:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 16:39:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:39:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:39:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-12-18 16:39:46,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:39:46,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506868450] [2021-12-18 16:39:46,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506868450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:39:46,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:39:46,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:39:46,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057892486] [2021-12-18 16:39:46,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:39:46,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:39:46,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:39:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:39:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:39:46,686 INFO L87 Difference]: Start difference. First operand 4906 states and 6768 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:39:52,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:54,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:56,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:39:58,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:13,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:17,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:19,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:40:22,163 INFO L93 Difference]: Finished difference Result 10553 states and 14725 transitions. [2021-12-18 16:40:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:40:22,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 212 [2021-12-18 16:40:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:40:22,182 INFO L225 Difference]: With dead ends: 10553 [2021-12-18 16:40:22,182 INFO L226 Difference]: Without dead ends: 5884 [2021-12-18 16:40:22,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:40:22,195 INFO L933 BasicCegarLoop]: 3508 mSDtfsCounter, 5164 mSDsluCounter, 6225 mSDsCounter, 0 mSdLazyCounter, 9573 mSolverCounterSat, 3782 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5352 SdHoareTripleChecker+Valid, 9733 SdHoareTripleChecker+Invalid, 13362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3782 IncrementalHoareTripleChecker+Valid, 9573 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:40:22,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5352 Valid, 9733 Invalid, 13362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3782 Valid, 9573 Invalid, 7 Unknown, 0 Unchecked, 34.6s Time] [2021-12-18 16:40:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2021-12-18 16:40:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 4906. [2021-12-18 16:40:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 3388 states have (on average 1.2647579693034239) internal successors, (4285), 3495 states have internal predecessors, (4285), 1197 states have call successors, (1197), 313 states have call predecessors, (1197), 312 states have return successors, (1285), 1158 states have call predecessors, (1285), 1195 states have call successors, (1285) [2021-12-18 16:40:22,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 6767 transitions. [2021-12-18 16:40:22,475 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 6767 transitions. Word has length 212 [2021-12-18 16:40:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:40:22,475 INFO L470 AbstractCegarLoop]: Abstraction has 4906 states and 6767 transitions. [2021-12-18 16:40:22,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:40:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 6767 transitions. [2021-12-18 16:40:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 16:40:22,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:40:22,478 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:40:22,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-18 16:40:22,478 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:40:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:40:22,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1074504810, now seen corresponding path program 1 times [2021-12-18 16:40:22,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:40:22,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775140530] [2021-12-18 16:40:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:40:22,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:40:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:40:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:40:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:40:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 16:40:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 16:40:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:40:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:40:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 16:40:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:40:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:40:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:40:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:40:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:40:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:40:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:40:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:40:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:40:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 16:40:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:40:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:40:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:40:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:40:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:40:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:40:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:40:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:40:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:40:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:40:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:40:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 16:40:22,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:40:22,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775140530] [2021-12-18 16:40:22,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775140530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:40:22,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:40:22,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:40:22,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273931236] [2021-12-18 16:40:22,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:40:22,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:40:22,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:40:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:40:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:40:22,802 INFO L87 Difference]: Start difference. First operand 4906 states and 6767 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:40:27,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:30,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:40:35,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15