./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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---drivers--input--misc--ims-pcu.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 e0c2b6cb89e48a11e817cc51933cd8194bf8c1187502e8ea2a988dbf620106e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 12:32:18,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 12:32:18,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 12:32:18,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 12:32:18,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 12:32:18,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 12:32:18,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 12:32:18,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 12:32:18,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 12:32:18,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 12:32:18,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 12:32:18,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 12:32:18,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 12:32:18,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 12:32:18,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 12:32:18,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 12:32:18,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 12:32:18,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 12:32:18,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 12:32:18,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 12:32:18,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 12:32:18,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 12:32:18,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 12:32:18,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 12:32:18,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 12:32:18,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 12:32:18,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 12:32:18,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 12:32:18,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 12:32:18,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 12:32:18,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 12:32:18,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 12:32:18,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 12:32:18,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 12:32:18,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 12:32:18,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 12:32:18,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 12:32:18,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 12:32:18,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 12:32:18,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 12:32:18,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 12:32:18,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 12:32:18,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 12:32:18,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 12:32:18,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 12:32:18,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 12:32:18,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 12:32:18,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 12:32:18,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 12:32:18,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 12:32:18,697 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 12:32:18,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 12:32:18,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 12:32:18,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 12:32:18,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 12:32:18,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 12:32:18,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 12:32:18,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 12:32:18,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 12:32:18,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 12:32:18,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 12:32:18,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 12:32:18,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 12:32:18,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 12:32:18,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 12:32:18,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 12:32:18,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 12:32:18,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 12:32:18,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 12:32:18,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 12:32:18,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 12:32:18,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 12:32:18,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 12:32:18,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0c2b6cb89e48a11e817cc51933cd8194bf8c1187502e8ea2a988dbf620106e5 [2021-11-17 12:32:18,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 12:32:18,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 12:32:18,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 12:32:18,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 12:32:18,973 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 12:32:18,974 INFO L432 ainManager$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---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-17 12:32:19,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100185778/32f610764fc4441191d435e714c281a4/FLAGfb5f100df [2021-11-17 12:32:19,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 12:32:19,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-17 12:32:19,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100185778/32f610764fc4441191d435e714c281a4/FLAGfb5f100df [2021-11-17 12:32:20,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100185778/32f610764fc4441191d435e714c281a4 [2021-11-17 12:32:20,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 12:32:20,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 12:32:20,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 12:32:20,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 12:32:20,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 12:32:20,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:32:20" (1/1) ... [2021-11-17 12:32:20,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5725e6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:20, skipping insertion in model container [2021-11-17 12:32:20,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:32:20" (1/1) ... [2021-11-17 12:32:20,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 12:32:20,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 12:32:23,767 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---drivers--input--misc--ims-pcu.ko.cil.i[341006,341019] [2021-11-17 12:32:23,777 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---drivers--input--misc--ims-pcu.ko.cil.i[341151,341164] [2021-11-17 12:32:23,780 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---drivers--input--misc--ims-pcu.ko.cil.i[341297,341310] [2021-11-17 12:32:23,781 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---drivers--input--misc--ims-pcu.ko.cil.i[341462,341475] [2021-11-17 12:32:23,782 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---drivers--input--misc--ims-pcu.ko.cil.i[341620,341633] [2021-11-17 12:32:23,782 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---drivers--input--misc--ims-pcu.ko.cil.i[341778,341791] [2021-11-17 12:32:23,783 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---drivers--input--misc--ims-pcu.ko.cil.i[341936,341949] [2021-11-17 12:32:23,784 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---drivers--input--misc--ims-pcu.ko.cil.i[342096,342109] [2021-11-17 12:32:23,784 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---drivers--input--misc--ims-pcu.ko.cil.i[342255,342268] [2021-11-17 12:32:23,784 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---drivers--input--misc--ims-pcu.ko.cil.i[342394,342407] [2021-11-17 12:32:23,785 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---drivers--input--misc--ims-pcu.ko.cil.i[342536,342549] [2021-11-17 12:32:23,786 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---drivers--input--misc--ims-pcu.ko.cil.i[342685,342698] [2021-11-17 12:32:23,786 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---drivers--input--misc--ims-pcu.ko.cil.i[342824,342837] [2021-11-17 12:32:23,787 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---drivers--input--misc--ims-pcu.ko.cil.i[342979,342992] [2021-11-17 12:32:23,787 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---drivers--input--misc--ims-pcu.ko.cil.i[343139,343152] [2021-11-17 12:32:23,787 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---drivers--input--misc--ims-pcu.ko.cil.i[343290,343303] [2021-11-17 12:32:23,788 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---drivers--input--misc--ims-pcu.ko.cil.i[343441,343454] [2021-11-17 12:32:23,790 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---drivers--input--misc--ims-pcu.ko.cil.i[343593,343606] [2021-11-17 12:32:23,791 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---drivers--input--misc--ims-pcu.ko.cil.i[343742,343755] [2021-11-17 12:32:23,792 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---drivers--input--misc--ims-pcu.ko.cil.i[343890,343903] [2021-11-17 12:32:23,793 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---drivers--input--misc--ims-pcu.ko.cil.i[344047,344060] [2021-11-17 12:32:23,793 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---drivers--input--misc--ims-pcu.ko.cil.i[344196,344209] [2021-11-17 12:32:23,794 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---drivers--input--misc--ims-pcu.ko.cil.i[344352,344365] [2021-11-17 12:32:23,795 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---drivers--input--misc--ims-pcu.ko.cil.i[344505,344518] [2021-11-17 12:32:23,801 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---drivers--input--misc--ims-pcu.ko.cil.i[344651,344664] [2021-11-17 12:32:23,802 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---drivers--input--misc--ims-pcu.ko.cil.i[344794,344807] [2021-11-17 12:32:23,803 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---drivers--input--misc--ims-pcu.ko.cil.i[344946,344959] [2021-11-17 12:32:23,804 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---drivers--input--misc--ims-pcu.ko.cil.i[345092,345105] [2021-11-17 12:32:23,804 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---drivers--input--misc--ims-pcu.ko.cil.i[345237,345250] [2021-11-17 12:32:23,804 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---drivers--input--misc--ims-pcu.ko.cil.i[345391,345404] [2021-11-17 12:32:23,806 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---drivers--input--misc--ims-pcu.ko.cil.i[345542,345555] [2021-11-17 12:32:23,806 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---drivers--input--misc--ims-pcu.ko.cil.i[345697,345710] [2021-11-17 12:32:23,806 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---drivers--input--misc--ims-pcu.ko.cil.i[345849,345862] [2021-11-17 12:32:23,807 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---drivers--input--misc--ims-pcu.ko.cil.i[346004,346017] [2021-11-17 12:32:23,809 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---drivers--input--misc--ims-pcu.ko.cil.i[346168,346181] [2021-11-17 12:32:23,810 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---drivers--input--misc--ims-pcu.ko.cil.i[346324,346337] [2021-11-17 12:32:23,810 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---drivers--input--misc--ims-pcu.ko.cil.i[346488,346501] [2021-11-17 12:32:23,811 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---drivers--input--misc--ims-pcu.ko.cil.i[346630,346643] [2021-11-17 12:32:23,811 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---drivers--input--misc--ims-pcu.ko.cil.i[346788,346801] [2021-11-17 12:32:23,812 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---drivers--input--misc--ims-pcu.ko.cil.i[346955,346968] [2021-11-17 12:32:23,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347114,347127] [2021-11-17 12:32:23,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347273,347286] [2021-11-17 12:32:23,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347422,347435] [2021-11-17 12:32:23,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347569,347582] [2021-11-17 12:32:23,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347708,347721] [2021-11-17 12:32:23,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347871,347884] [2021-11-17 12:32:23,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348037,348050] [2021-11-17 12:32:23,816 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---drivers--input--misc--ims-pcu.ko.cil.i[348201,348214] [2021-11-17 12:32:23,816 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---drivers--input--misc--ims-pcu.ko.cil.i[348366,348379] [2021-11-17 12:32:23,817 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---drivers--input--misc--ims-pcu.ko.cil.i[348531,348544] [2021-11-17 12:32:23,817 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---drivers--input--misc--ims-pcu.ko.cil.i[348697,348710] [2021-11-17 12:32:23,818 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---drivers--input--misc--ims-pcu.ko.cil.i[348862,348875] [2021-11-17 12:32:23,818 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---drivers--input--misc--ims-pcu.ko.cil.i[349029,349042] [2021-11-17 12:32:23,818 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---drivers--input--misc--ims-pcu.ko.cil.i[349189,349202] [2021-11-17 12:32:23,819 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---drivers--input--misc--ims-pcu.ko.cil.i[349351,349364] [2021-11-17 12:32:23,820 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---drivers--input--misc--ims-pcu.ko.cil.i[349510,349523] [2021-11-17 12:32:23,820 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---drivers--input--misc--ims-pcu.ko.cil.i[349656,349669] [2021-11-17 12:32:23,821 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---drivers--input--misc--ims-pcu.ko.cil.i[349799,349812] [2021-11-17 12:32:23,821 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---drivers--input--misc--ims-pcu.ko.cil.i[349943,349956] [2021-11-17 12:32:23,822 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---drivers--input--misc--ims-pcu.ko.cil.i[350086,350099] [2021-11-17 12:32:23,822 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---drivers--input--misc--ims-pcu.ko.cil.i[350230,350243] [2021-11-17 12:32:23,822 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---drivers--input--misc--ims-pcu.ko.cil.i[350371,350384] [2021-11-17 12:32:23,823 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---drivers--input--misc--ims-pcu.ko.cil.i[350509,350522] [2021-11-17 12:32:23,823 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---drivers--input--misc--ims-pcu.ko.cil.i[350667,350680] [2021-11-17 12:32:23,823 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---drivers--input--misc--ims-pcu.ko.cil.i[350826,350839] [2021-11-17 12:32:23,824 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---drivers--input--misc--ims-pcu.ko.cil.i[350982,350995] [2021-11-17 12:32:23,824 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---drivers--input--misc--ims-pcu.ko.cil.i[351131,351144] [2021-11-17 12:32:23,824 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---drivers--input--misc--ims-pcu.ko.cil.i[351283,351296] [2021-11-17 12:32:23,825 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---drivers--input--misc--ims-pcu.ko.cil.i[351434,351447] [2021-11-17 12:32:23,825 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---drivers--input--misc--ims-pcu.ko.cil.i[351583,351596] [2021-11-17 12:32:23,825 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---drivers--input--misc--ims-pcu.ko.cil.i[351735,351748] [2021-11-17 12:32:23,826 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---drivers--input--misc--ims-pcu.ko.cil.i[351883,351896] [2021-11-17 12:32:23,826 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---drivers--input--misc--ims-pcu.ko.cil.i[352036,352049] [2021-11-17 12:32:23,827 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---drivers--input--misc--ims-pcu.ko.cil.i[352187,352200] [2021-11-17 12:32:23,827 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---drivers--input--misc--ims-pcu.ko.cil.i[352337,352350] [2021-11-17 12:32:23,827 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---drivers--input--misc--ims-pcu.ko.cil.i[352484,352497] [2021-11-17 12:32:23,828 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---drivers--input--misc--ims-pcu.ko.cil.i[352635,352648] [2021-11-17 12:32:23,828 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---drivers--input--misc--ims-pcu.ko.cil.i[352786,352799] [2021-11-17 12:32:23,828 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---drivers--input--misc--ims-pcu.ko.cil.i[352934,352947] [2021-11-17 12:32:23,829 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---drivers--input--misc--ims-pcu.ko.cil.i[353100,353113] [2021-11-17 12:32:23,829 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---drivers--input--misc--ims-pcu.ko.cil.i[353269,353282] [2021-11-17 12:32:23,829 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---drivers--input--misc--ims-pcu.ko.cil.i[353436,353449] [2021-11-17 12:32:23,830 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---drivers--input--misc--ims-pcu.ko.cil.i[353604,353617] [2021-11-17 12:32:23,830 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---drivers--input--misc--ims-pcu.ko.cil.i[353754,353767] [2021-11-17 12:32:23,830 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---drivers--input--misc--ims-pcu.ko.cil.i[353901,353914] [2021-11-17 12:32:23,831 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---drivers--input--misc--ims-pcu.ko.cil.i[354062,354075] [2021-11-17 12:32:23,831 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---drivers--input--misc--ims-pcu.ko.cil.i[354232,354245] [2021-11-17 12:32:23,831 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---drivers--input--misc--ims-pcu.ko.cil.i[354394,354407] [2021-11-17 12:32:23,839 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 12:32:23,872 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 12:32:24,194 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---drivers--input--misc--ims-pcu.ko.cil.i[341006,341019] [2021-11-17 12:32:24,196 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---drivers--input--misc--ims-pcu.ko.cil.i[341151,341164] [2021-11-17 12:32:24,196 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---drivers--input--misc--ims-pcu.ko.cil.i[341297,341310] [2021-11-17 12:32:24,197 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---drivers--input--misc--ims-pcu.ko.cil.i[341462,341475] [2021-11-17 12:32:24,198 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---drivers--input--misc--ims-pcu.ko.cil.i[341620,341633] [2021-11-17 12:32:24,198 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---drivers--input--misc--ims-pcu.ko.cil.i[341778,341791] [2021-11-17 12:32:24,199 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---drivers--input--misc--ims-pcu.ko.cil.i[341936,341949] [2021-11-17 12:32:24,199 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---drivers--input--misc--ims-pcu.ko.cil.i[342096,342109] [2021-11-17 12:32:24,200 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---drivers--input--misc--ims-pcu.ko.cil.i[342255,342268] [2021-11-17 12:32:24,201 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---drivers--input--misc--ims-pcu.ko.cil.i[342394,342407] [2021-11-17 12:32:24,201 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---drivers--input--misc--ims-pcu.ko.cil.i[342536,342549] [2021-11-17 12:32:24,202 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---drivers--input--misc--ims-pcu.ko.cil.i[342685,342698] [2021-11-17 12:32:24,202 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---drivers--input--misc--ims-pcu.ko.cil.i[342824,342837] [2021-11-17 12:32:24,202 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---drivers--input--misc--ims-pcu.ko.cil.i[342979,342992] [2021-11-17 12:32:24,203 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---drivers--input--misc--ims-pcu.ko.cil.i[343139,343152] [2021-11-17 12:32:24,203 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---drivers--input--misc--ims-pcu.ko.cil.i[343290,343303] [2021-11-17 12:32:24,203 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---drivers--input--misc--ims-pcu.ko.cil.i[343441,343454] [2021-11-17 12:32:24,204 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---drivers--input--misc--ims-pcu.ko.cil.i[343593,343606] [2021-11-17 12:32:24,204 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---drivers--input--misc--ims-pcu.ko.cil.i[343742,343755] [2021-11-17 12:32:24,205 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---drivers--input--misc--ims-pcu.ko.cil.i[343890,343903] [2021-11-17 12:32:24,205 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---drivers--input--misc--ims-pcu.ko.cil.i[344047,344060] [2021-11-17 12:32:24,206 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---drivers--input--misc--ims-pcu.ko.cil.i[344196,344209] [2021-11-17 12:32:24,206 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---drivers--input--misc--ims-pcu.ko.cil.i[344352,344365] [2021-11-17 12:32:24,208 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---drivers--input--misc--ims-pcu.ko.cil.i[344505,344518] [2021-11-17 12:32:24,208 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---drivers--input--misc--ims-pcu.ko.cil.i[344651,344664] [2021-11-17 12:32:24,208 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---drivers--input--misc--ims-pcu.ko.cil.i[344794,344807] [2021-11-17 12:32:24,209 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---drivers--input--misc--ims-pcu.ko.cil.i[344946,344959] [2021-11-17 12:32:24,209 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---drivers--input--misc--ims-pcu.ko.cil.i[345092,345105] [2021-11-17 12:32:24,209 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---drivers--input--misc--ims-pcu.ko.cil.i[345237,345250] [2021-11-17 12:32:24,210 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---drivers--input--misc--ims-pcu.ko.cil.i[345391,345404] [2021-11-17 12:32:24,210 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---drivers--input--misc--ims-pcu.ko.cil.i[345542,345555] [2021-11-17 12:32:24,211 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---drivers--input--misc--ims-pcu.ko.cil.i[345697,345710] [2021-11-17 12:32:24,211 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---drivers--input--misc--ims-pcu.ko.cil.i[345849,345862] [2021-11-17 12:32:24,212 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---drivers--input--misc--ims-pcu.ko.cil.i[346004,346017] [2021-11-17 12:32:24,212 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---drivers--input--misc--ims-pcu.ko.cil.i[346168,346181] [2021-11-17 12:32:24,212 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---drivers--input--misc--ims-pcu.ko.cil.i[346324,346337] [2021-11-17 12:32:24,213 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---drivers--input--misc--ims-pcu.ko.cil.i[346488,346501] [2021-11-17 12:32:24,216 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---drivers--input--misc--ims-pcu.ko.cil.i[346630,346643] [2021-11-17 12:32:24,217 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---drivers--input--misc--ims-pcu.ko.cil.i[346788,346801] [2021-11-17 12:32:24,219 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---drivers--input--misc--ims-pcu.ko.cil.i[346955,346968] [2021-11-17 12:32:24,220 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---drivers--input--misc--ims-pcu.ko.cil.i[347114,347127] [2021-11-17 12:32:24,221 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---drivers--input--misc--ims-pcu.ko.cil.i[347273,347286] [2021-11-17 12:32:24,221 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---drivers--input--misc--ims-pcu.ko.cil.i[347422,347435] [2021-11-17 12:32:24,221 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---drivers--input--misc--ims-pcu.ko.cil.i[347569,347582] [2021-11-17 12:32:24,222 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---drivers--input--misc--ims-pcu.ko.cil.i[347708,347721] [2021-11-17 12:32:24,222 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---drivers--input--misc--ims-pcu.ko.cil.i[347871,347884] [2021-11-17 12:32:24,223 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---drivers--input--misc--ims-pcu.ko.cil.i[348037,348050] [2021-11-17 12:32:24,223 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---drivers--input--misc--ims-pcu.ko.cil.i[348201,348214] [2021-11-17 12:32:24,224 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---drivers--input--misc--ims-pcu.ko.cil.i[348366,348379] [2021-11-17 12:32:24,224 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---drivers--input--misc--ims-pcu.ko.cil.i[348531,348544] [2021-11-17 12:32:24,225 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---drivers--input--misc--ims-pcu.ko.cil.i[348697,348710] [2021-11-17 12:32:24,226 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---drivers--input--misc--ims-pcu.ko.cil.i[348862,348875] [2021-11-17 12:32:24,226 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---drivers--input--misc--ims-pcu.ko.cil.i[349029,349042] [2021-11-17 12:32:24,227 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---drivers--input--misc--ims-pcu.ko.cil.i[349189,349202] [2021-11-17 12:32:24,228 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---drivers--input--misc--ims-pcu.ko.cil.i[349351,349364] [2021-11-17 12:32:24,228 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---drivers--input--misc--ims-pcu.ko.cil.i[349510,349523] [2021-11-17 12:32:24,229 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---drivers--input--misc--ims-pcu.ko.cil.i[349656,349669] [2021-11-17 12:32:24,229 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---drivers--input--misc--ims-pcu.ko.cil.i[349799,349812] [2021-11-17 12:32:24,230 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---drivers--input--misc--ims-pcu.ko.cil.i[349943,349956] [2021-11-17 12:32:24,230 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---drivers--input--misc--ims-pcu.ko.cil.i[350086,350099] [2021-11-17 12:32:24,230 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---drivers--input--misc--ims-pcu.ko.cil.i[350230,350243] [2021-11-17 12:32:24,232 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---drivers--input--misc--ims-pcu.ko.cil.i[350371,350384] [2021-11-17 12:32:24,233 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---drivers--input--misc--ims-pcu.ko.cil.i[350509,350522] [2021-11-17 12:32:24,239 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---drivers--input--misc--ims-pcu.ko.cil.i[350667,350680] [2021-11-17 12:32:24,240 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---drivers--input--misc--ims-pcu.ko.cil.i[350826,350839] [2021-11-17 12:32:24,241 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---drivers--input--misc--ims-pcu.ko.cil.i[350982,350995] [2021-11-17 12:32:24,241 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---drivers--input--misc--ims-pcu.ko.cil.i[351131,351144] [2021-11-17 12:32:24,242 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---drivers--input--misc--ims-pcu.ko.cil.i[351283,351296] [2021-11-17 12:32:24,243 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---drivers--input--misc--ims-pcu.ko.cil.i[351434,351447] [2021-11-17 12:32:24,243 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---drivers--input--misc--ims-pcu.ko.cil.i[351583,351596] [2021-11-17 12:32:24,244 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---drivers--input--misc--ims-pcu.ko.cil.i[351735,351748] [2021-11-17 12:32:24,244 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---drivers--input--misc--ims-pcu.ko.cil.i[351883,351896] [2021-11-17 12:32:24,249 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---drivers--input--misc--ims-pcu.ko.cil.i[352036,352049] [2021-11-17 12:32:24,250 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---drivers--input--misc--ims-pcu.ko.cil.i[352187,352200] [2021-11-17 12:32:24,250 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---drivers--input--misc--ims-pcu.ko.cil.i[352337,352350] [2021-11-17 12:32:24,250 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---drivers--input--misc--ims-pcu.ko.cil.i[352484,352497] [2021-11-17 12:32:24,251 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---drivers--input--misc--ims-pcu.ko.cil.i[352635,352648] [2021-11-17 12:32:24,251 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---drivers--input--misc--ims-pcu.ko.cil.i[352786,352799] [2021-11-17 12:32:24,253 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---drivers--input--misc--ims-pcu.ko.cil.i[352934,352947] [2021-11-17 12:32:24,253 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---drivers--input--misc--ims-pcu.ko.cil.i[353100,353113] [2021-11-17 12:32:24,254 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---drivers--input--misc--ims-pcu.ko.cil.i[353269,353282] [2021-11-17 12:32:24,254 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---drivers--input--misc--ims-pcu.ko.cil.i[353436,353449] [2021-11-17 12:32:24,255 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---drivers--input--misc--ims-pcu.ko.cil.i[353604,353617] [2021-11-17 12:32:24,255 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---drivers--input--misc--ims-pcu.ko.cil.i[353754,353767] [2021-11-17 12:32:24,256 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---drivers--input--misc--ims-pcu.ko.cil.i[353901,353914] [2021-11-17 12:32:24,256 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---drivers--input--misc--ims-pcu.ko.cil.i[354062,354075] [2021-11-17 12:32:24,256 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---drivers--input--misc--ims-pcu.ko.cil.i[354232,354245] [2021-11-17 12:32:24,257 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---drivers--input--misc--ims-pcu.ko.cil.i[354394,354407] [2021-11-17 12:32:24,260 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 12:32:24,469 INFO L208 MainTranslator]: Completed translation [2021-11-17 12:32:24,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24 WrapperNode [2021-11-17 12:32:24,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 12:32:24,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 12:32:24,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 12:32:24,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 12:32:24,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,747 INFO L137 Inliner]: procedures = 609, calls = 2320, calls flagged for inlining = 291, calls inlined = 202, statements flattened = 4581 [2021-11-17 12:32:24,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 12:32:24,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 12:32:24,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 12:32:24,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 12:32:24,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:24,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:25,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 12:32:25,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 12:32:25,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 12:32:25,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 12:32:25,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (1/1) ... [2021-11-17 12:32:25,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 12:32:25,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:32:25,045 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) [2021-11-17 12:32:25,069 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 [2021-11-17 12:32:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-17 12:32:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-17 12:32:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-17 12:32:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-17 12:32:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 12:32:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 12:32:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2021-11-17 12:32:25,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2021-11-17 12:32:25,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 12:32:25,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 12:32:25,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-17 12:32:25,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-17 12:32:25,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-17 12:32:25,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-17 12:32:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-17 12:32:25,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-17 12:32:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-17 12:32:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-17 12:32:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 12:32:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_sysfs_create_group [2021-11-17 12:32:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_sysfs_create_group [2021-11-17 12:32:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2021-11-17 12:32:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2021-11-17 12:32:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 12:32:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 12:32:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 12:32:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 12:32:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-17 12:32:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-17 12:32:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 12:32:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-17 12:32:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-17 12:32:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2021-11-17 12:32:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2021-11-17 12:32:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 12:32:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 12:32:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-17 12:32:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-17 12:32:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 12:32:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 12:32:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-11-17 12:32:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-11-17 12:32:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-17 12:32:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-17 12:32:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 12:32:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_bit_store [2021-11-17 12:32:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_bit_store [2021-11-17 12:32:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-17 12:32:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-17 12:32:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-17 12:32:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-17 12:32:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2021-11-17 12:32:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2021-11-17 12:32:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 12:32:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 12:32:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-17 12:32:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-17 12:32:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2021-11-17 12:32:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2021-11-17 12:32:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 12:32:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 12:32:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 12:32:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 12:32:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_completion_94 [2021-11-17 12:32:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_completion_94 [2021-11-17 12:32:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-17 12:32:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-17 12:32:25,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-11-17 12:32:25,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-11-17 12:32:25,097 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2021-11-17 12:32:25,097 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2021-11-17 12:32:25,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-17 12:32:25,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-17 12:32:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 12:32:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2021-11-17 12:32:25,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2021-11-17 12:32:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-17 12:32:25,101 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-17 12:32:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 12:32:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2021-11-17 12:32:25,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2021-11-17 12:32:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 12:32:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 12:32:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 12:32:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 12:32:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 12:32:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 12:32:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 12:32:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-17 12:32:25,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-17 12:32:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-17 12:32:25,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-17 12:32:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_write_ofn_config [2021-11-17 12:32:25,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_write_ofn_config [2021-11-17 12:32:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-17 12:32:25,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-17 12:32:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_sysfs_remove_group [2021-11-17 12:32:25,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_sysfs_remove_group [2021-11-17 12:32:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2021-11-17 12:32:25,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2021-11-17 12:32:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 12:32:25,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 12:32:25,105 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 12:32:25,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 12:32:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 12:32:25,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 12:32:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 12:32:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 12:32:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 12:32:25,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 12:32:25,106 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-17 12:32:25,106 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-17 12:32:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-17 12:32:25,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-17 12:32:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-17 12:32:25,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-17 12:32:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2021-11-17 12:32:25,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2021-11-17 12:32:25,108 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-17 12:32:25,108 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-17 12:32:25,108 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_reg_addr_store [2021-11-17 12:32:25,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_reg_addr_store [2021-11-17 12:32:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 12:32:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 12:32:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-17 12:32:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-17 12:32:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-17 12:32:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-17 12:32:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-17 12:32:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-17 12:32:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-17 12:32:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-17 12:32:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 12:32:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-17 12:32:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-17 12:32:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2021-11-17 12:32:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2021-11-17 12:32:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 12:32:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-17 12:32:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-17 12:32:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-11-17 12:32:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-11-17 12:32:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-17 12:32:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-17 12:32:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-17 12:32:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-17 12:32:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_cmd_mutex_of_ims_pcu [2021-11-17 12:32:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 12:32:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-17 12:32:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-17 12:32:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 12:32:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 12:32:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 12:32:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 12:32:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-17 12:32:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-17 12:32:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2021-11-17 12:32:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2021-11-17 12:32:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 12:32:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 12:32:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 12:32:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 12:32:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-17 12:32:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-17 12:32:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 12:32:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 12:32:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_read_ofn_config [2021-11-17 12:32:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_read_ofn_config [2021-11-17 12:32:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-17 12:32:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-17 12:32:25,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-17 12:32:25,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-17 12:32:25,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-17 12:32:25,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-17 12:32:25,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 12:32:25,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 12:32:25,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-17 12:32:25,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-17 12:32:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-17 12:32:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-17 12:32:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_bit_show [2021-11-17 12:32:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_bit_show [2021-11-17 12:32:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 12:32:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 12:32:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2021-11-17 12:32:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2021-11-17 12:32:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-17 12:32:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-17 12:32:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 12:32:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 12:32:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 12:32:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 12:32:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2021-11-17 12:32:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2021-11-17 12:32:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 12:32:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-17 12:32:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-17 12:32:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2021-11-17 12:32:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2021-11-17 12:32:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 12:32:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 12:32:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-17 12:32:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-17 12:32:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-11-17 12:32:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-11-17 12:32:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2021-11-17 12:32:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2021-11-17 12:32:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-17 12:32:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-17 12:32:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-17 12:32:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-17 12:32:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2021-11-17 12:32:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2021-11-17 12:32:25,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 12:32:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 12:32:25,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-17 12:32:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-17 12:32:25,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 12:32:25,121 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-11-17 12:32:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-11-17 12:32:25,908 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 12:32:25,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 12:32:26,011 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 12:32:30,734 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 12:32:30,748 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 12:32:30,749 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 12:32:30,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:32:30 BoogieIcfgContainer [2021-11-17 12:32:30,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 12:32:30,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 12:32:30,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 12:32:30,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 12:32:30,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:32:20" (1/3) ... [2021-11-17 12:32:30,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74635b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:32:30, skipping insertion in model container [2021-11-17 12:32:30,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:32:24" (2/3) ... [2021-11-17 12:32:30,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74635b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:32:30, skipping insertion in model container [2021-11-17 12:32:30,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:32:30" (3/3) ... [2021-11-17 12:32:30,760 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-17 12:32:30,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 12:32:30,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-17 12:32:30,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 12:32:30,813 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 [2021-11-17 12:32:30,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-17 12:32:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 1491 states, 971 states have (on average 1.258496395468589) internal successors, (1222), 1027 states have internal predecessors, (1222), 385 states have call successors, (385), 104 states have call predecessors, (385), 103 states have return successors, (382), 382 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-17 12:32:30,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 12:32:30,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:32:30,860 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] [2021-11-17 12:32:30,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:32:30,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:32:30,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1443060829, now seen corresponding path program 1 times [2021-11-17 12:32:30,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:32:30,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063231534] [2021-11-17 12:32:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:32:30,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:32:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:32:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:32:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:32:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:32:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:32:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:32:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:32:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:32:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:32:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:32:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:32:31,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:32:31,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063231534] [2021-11-17 12:32:31,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063231534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:32:31,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:32:31,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:32:31,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617730637] [2021-11-17 12:32:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:32:31,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:32:31,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:32:31,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:32:31,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:32:31,694 INFO L87 Difference]: Start difference. First operand has 1491 states, 971 states have (on average 1.258496395468589) internal successors, (1222), 1027 states have internal predecessors, (1222), 385 states have call successors, (385), 104 states have call predecessors, (385), 103 states have return successors, (382), 382 states have call predecessors, (382), 382 states have call successors, (382) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 12:32:33,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:35,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:32:39,242 INFO L93 Difference]: Finished difference Result 2933 states and 4046 transitions. [2021-11-17 12:32:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:32:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 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 [2021-11-17 12:32:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:32:39,276 INFO L225 Difference]: With dead ends: 2933 [2021-11-17 12:32:39,277 INFO L226 Difference]: Without dead ends: 1475 [2021-11-17 12:32:39,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:32:39,295 INFO L933 BasicCegarLoop]: 1830 mSDtfsCounter, 2704 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 1252 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:32:39,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 4116 Invalid, 2658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1252 Valid, 1404 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-17 12:32:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2021-11-17 12:32:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2021-11-17 12:32:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 961 states have (on average 1.2247658688865766) internal successors, (1177), 1014 states have internal predecessors, (1177), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:32:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1939 transitions. [2021-11-17 12:32:39,454 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1939 transitions. Word has length 71 [2021-11-17 12:32:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:32:39,456 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 1939 transitions. [2021-11-17 12:32:39,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 12:32:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1939 transitions. [2021-11-17 12:32:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-17 12:32:39,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:32:39,465 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] [2021-11-17 12:32:39,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 12:32:39,466 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:32:39,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:32:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash -191390958, now seen corresponding path program 1 times [2021-11-17 12:32:39,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:32:39,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592317905] [2021-11-17 12:32:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:32:39,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:32:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:32:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:32:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:32:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:32:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:32:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:32:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:32:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:32:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:32:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:32:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:32:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:32:39,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:32:39,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592317905] [2021-11-17 12:32:39,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592317905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:32:39,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:32:39,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:32:39,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258245480] [2021-11-17 12:32:39,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:32:39,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:32:39,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:32:39,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:32:39,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:32:39,772 INFO L87 Difference]: Start difference. First operand 1475 states and 1939 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 12:32:41,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:43,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:32:46,814 INFO L93 Difference]: Finished difference Result 1475 states and 1939 transitions. [2021-11-17 12:32:46,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:32:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 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 [2021-11-17 12:32:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:32:46,823 INFO L225 Difference]: With dead ends: 1475 [2021-11-17 12:32:46,823 INFO L226 Difference]: Without dead ends: 1473 [2021-11-17 12:32:46,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:32:46,825 INFO L933 BasicCegarLoop]: 1814 mSDtfsCounter, 2674 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:32:46,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 4086 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1392 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 12:32:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-17 12:32:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2021-11-17 12:32:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 960 states have (on average 1.2239583333333333) internal successors, (1175), 1012 states have internal predecessors, (1175), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:32:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 1937 transitions. [2021-11-17 12:32:46,905 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 1937 transitions. Word has length 77 [2021-11-17 12:32:46,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:32:46,905 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 1937 transitions. [2021-11-17 12:32:46,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 12:32:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 1937 transitions. [2021-11-17 12:32:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-17 12:32:46,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:32:46,907 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] [2021-11-17 12:32:46,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 12:32:46,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:32:46,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:32:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1554937333, now seen corresponding path program 1 times [2021-11-17 12:32:46,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:32:46,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806925211] [2021-11-17 12:32:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:32:46,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:32:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:32:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:32:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:32:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:32:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:32:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:32:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:32:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:32:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:32:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:32:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:32:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:32:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:32:47,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:32:47,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806925211] [2021-11-17 12:32:47,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806925211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:32:47,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:32:47,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:32:47,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101270668] [2021-11-17 12:32:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:32:47,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:32:47,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:32:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:32:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:32:47,232 INFO L87 Difference]: Start difference. First operand 1473 states and 1937 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 12:32:49,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:51,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:32:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:32:54,174 INFO L93 Difference]: Finished difference Result 1473 states and 1937 transitions. [2021-11-17 12:32:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:32:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 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 [2021-11-17 12:32:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:32:54,185 INFO L225 Difference]: With dead ends: 1473 [2021-11-17 12:32:54,185 INFO L226 Difference]: Without dead ends: 1471 [2021-11-17 12:32:54,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:32:54,188 INFO L933 BasicCegarLoop]: 1812 mSDtfsCounter, 2668 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:32:54,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2916 Valid, 4084 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1390 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:32:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-17 12:32:54,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1471. [2021-11-17 12:32:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 959 states have (on average 1.2231491136600625) internal successors, (1173), 1010 states have internal predecessors, (1173), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:32:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1935 transitions. [2021-11-17 12:32:54,254 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1935 transitions. Word has length 83 [2021-11-17 12:32:54,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:32:54,256 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 1935 transitions. [2021-11-17 12:32:54,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 12:32:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1935 transitions. [2021-11-17 12:32:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-17 12:32:54,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:32:54,258 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, 1, 1, 1, 1, 1] [2021-11-17 12:32:54,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 12:32:54,259 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:32:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:32:54,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1601048255, now seen corresponding path program 1 times [2021-11-17 12:32:54,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:32:54,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590119236] [2021-11-17 12:32:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:32:54,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:32:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:32:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:32:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:32:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:32:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:32:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:32:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:32:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:32:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:32:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:32:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:32:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:32:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:32:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:32:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:32:54,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:32:54,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590119236] [2021-11-17 12:32:54,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590119236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:32:54,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:32:54,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:32:54,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241126361] [2021-11-17 12:32:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:32:54,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:32:54,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:32:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:32:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:32:54,566 INFO L87 Difference]: Start difference. First operand 1471 states and 1935 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 12:32:57,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:00,343 INFO L93 Difference]: Finished difference Result 1471 states and 1935 transitions. [2021-11-17 12:33:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:33:00,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 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 [2021-11-17 12:33:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:00,352 INFO L225 Difference]: With dead ends: 1471 [2021-11-17 12:33:00,352 INFO L226 Difference]: Without dead ends: 1469 [2021-11-17 12:33:00,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:33:00,354 INFO L933 BasicCegarLoop]: 1810 mSDtfsCounter, 2662 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:00,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2909 Valid, 4082 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-17 12:33:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2021-11-17 12:33:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2021-11-17 12:33:00,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 958 states have (on average 1.2223382045929019) internal successors, (1171), 1008 states have internal predecessors, (1171), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:33:00,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1933 transitions. [2021-11-17 12:33:00,416 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1933 transitions. Word has length 89 [2021-11-17 12:33:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:00,416 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 1933 transitions. [2021-11-17 12:33:00,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 12:33:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1933 transitions. [2021-11-17 12:33:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-17 12:33:00,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:00,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:33:00,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 12:33:00,419 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:00,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1359531351, now seen corresponding path program 1 times [2021-11-17 12:33:00,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:00,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828595368] [2021-11-17 12:33:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:00,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:33:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:33:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:33:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:33:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:33:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:33:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:33:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:33:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:33:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:33:00,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:00,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828595368] [2021-11-17 12:33:00,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828595368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:00,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:00,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:33:00,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138746167] [2021-11-17 12:33:00,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:00,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:33:00,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:00,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:33:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:33:00,700 INFO L87 Difference]: Start difference. First operand 1469 states and 1933 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 12:33:01,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:04,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:06,847 INFO L93 Difference]: Finished difference Result 1469 states and 1933 transitions. [2021-11-17 12:33:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:33:06,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 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 [2021-11-17 12:33:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:06,856 INFO L225 Difference]: With dead ends: 1469 [2021-11-17 12:33:06,856 INFO L226 Difference]: Without dead ends: 1467 [2021-11-17 12:33:06,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:33:06,858 INFO L933 BasicCegarLoop]: 1808 mSDtfsCounter, 2656 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 1246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2902 SdHoareTripleChecker+Valid, 4080 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:06,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2902 Valid, 4080 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1387 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-11-17 12:33:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-11-17 12:33:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2021-11-17 12:33:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 957 states have (on average 1.2215256008359456) internal successors, (1169), 1006 states have internal predecessors, (1169), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:33:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1931 transitions. [2021-11-17 12:33:06,941 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1931 transitions. Word has length 95 [2021-11-17 12:33:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:06,943 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 1931 transitions. [2021-11-17 12:33:06,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 12:33:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1931 transitions. [2021-11-17 12:33:06,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-17 12:33:06,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:06,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:33:06,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 12:33:06,946 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:06,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:06,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1567667439, now seen corresponding path program 1 times [2021-11-17 12:33:06,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:06,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223098254] [2021-11-17 12:33:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:06,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:33:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:33:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:33:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:33:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:33:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:33:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:33:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:33:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:33:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:33:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:33:07,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:07,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223098254] [2021-11-17 12:33:07,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223098254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:07,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:07,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:33:07,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728063615] [2021-11-17 12:33:07,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:07,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:33:07,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:33:07,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:33:07,266 INFO L87 Difference]: Start difference. First operand 1467 states and 1931 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 12:33:09,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:11,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:13,841 INFO L93 Difference]: Finished difference Result 1467 states and 1931 transitions. [2021-11-17 12:33:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:33:13,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 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 [2021-11-17 12:33:13,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:13,847 INFO L225 Difference]: With dead ends: 1467 [2021-11-17 12:33:13,847 INFO L226 Difference]: Without dead ends: 1465 [2021-11-17 12:33:13,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:33:13,848 INFO L933 BasicCegarLoop]: 1806 mSDtfsCounter, 2650 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:13,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2895 Valid, 4078 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1384 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 12:33:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2021-11-17 12:33:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1465. [2021-11-17 12:33:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 956 states have (on average 1.2207112970711298) internal successors, (1167), 1004 states have internal predecessors, (1167), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-17 12:33:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1929 transitions. [2021-11-17 12:33:13,902 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1929 transitions. Word has length 101 [2021-11-17 12:33:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:13,903 INFO L470 AbstractCegarLoop]: Abstraction has 1465 states and 1929 transitions. [2021-11-17 12:33:13,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 12:33:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1929 transitions. [2021-11-17 12:33:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-17 12:33:13,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:13,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:33:13,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 12:33:13,905 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash -960086196, now seen corresponding path program 1 times [2021-11-17 12:33:13,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:13,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007690] [2021-11-17 12:33:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:13,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:33:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:33:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:33:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:33:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:33:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:33:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:33:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:33:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:33:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:33:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:33:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:33:14,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:14,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007690] [2021-11-17 12:33:14,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:14,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:14,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:33:14,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890826218] [2021-11-17 12:33:14,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:14,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:33:14,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:33:14,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:33:14,204 INFO L87 Difference]: Start difference. First operand 1465 states and 1929 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 12:33:16,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:22,917 INFO L93 Difference]: Finished difference Result 2692 states and 3514 transitions. [2021-11-17 12:33:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 12:33:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 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 [2021-11-17 12:33:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:22,934 INFO L225 Difference]: With dead ends: 2692 [2021-11-17 12:33:22,934 INFO L226 Difference]: Without dead ends: 2690 [2021-11-17 12:33:22,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:33:22,938 INFO L933 BasicCegarLoop]: 2194 mSDtfsCounter, 3684 mSDsluCounter, 3735 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 1969 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3924 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 4728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1969 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:22,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3924 Valid, 5929 Invalid, 4728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1969 Valid, 2758 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-17 12:33:22,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2021-11-17 12:33:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2546. [2021-11-17 12:33:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 1674 states have (on average 1.2180406212664276) internal successors, (2039), 1741 states have internal predecessors, (2039), 662 states have call successors, (662), 186 states have call predecessors, (662), 185 states have return successors, (663), 659 states have call predecessors, (663), 660 states have call successors, (663) [2021-11-17 12:33:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3364 transitions. [2021-11-17 12:33:23,060 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3364 transitions. Word has length 107 [2021-11-17 12:33:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:23,060 INFO L470 AbstractCegarLoop]: Abstraction has 2546 states and 3364 transitions. [2021-11-17 12:33:23,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 12:33:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3364 transitions. [2021-11-17 12:33:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-17 12:33:23,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:23,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:33:23,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 12:33:23,063 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:23,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1041772623, now seen corresponding path program 1 times [2021-11-17 12:33:23,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:23,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372298027] [2021-11-17 12:33:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:23,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:33:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:33:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:33:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:33:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:33:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:33:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:33:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:33:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:33:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:33:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:33:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:33:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:33:23,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:23,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372298027] [2021-11-17 12:33:23,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372298027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:23,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:23,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:33:23,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773238226] [2021-11-17 12:33:23,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:23,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:33:23,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:33:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:33:23,422 INFO L87 Difference]: Start difference. First operand 2546 states and 3364 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 12:33:25,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:27,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:30,751 INFO L93 Difference]: Finished difference Result 2546 states and 3364 transitions. [2021-11-17 12:33:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:33:30,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 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 113 [2021-11-17 12:33:30,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:30,764 INFO L225 Difference]: With dead ends: 2546 [2021-11-17 12:33:30,765 INFO L226 Difference]: Without dead ends: 2544 [2021-11-17 12:33:30,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:33:30,767 INFO L933 BasicCegarLoop]: 1804 mSDtfsCounter, 2648 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 4076 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:30,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2891 Valid, 4076 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1378 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-17 12:33:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2021-11-17 12:33:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2021-11-17 12:33:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1673 states have (on average 1.217573221757322) internal successors, (2037), 1739 states have internal predecessors, (2037), 662 states have call successors, (662), 186 states have call predecessors, (662), 185 states have return successors, (663), 659 states have call predecessors, (663), 660 states have call successors, (663) [2021-11-17 12:33:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3362 transitions. [2021-11-17 12:33:30,882 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3362 transitions. Word has length 113 [2021-11-17 12:33:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:30,883 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 3362 transitions. [2021-11-17 12:33:30,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 12:33:30,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3362 transitions. [2021-11-17 12:33:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-17 12:33:30,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:30,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:33:30,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 12:33:30,885 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:30,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash -415972780, now seen corresponding path program 1 times [2021-11-17 12:33:30,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:30,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415728694] [2021-11-17 12:33:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:30,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:33:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:33:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:33:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:33:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:33:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:33:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:33:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:33:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:33:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:33:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:33:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:33:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:33:31,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:31,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415728694] [2021-11-17 12:33:31,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415728694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:31,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:31,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:33:31,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594040027] [2021-11-17 12:33:31,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:31,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:33:31,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:31,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:33:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:33:31,172 INFO L87 Difference]: Start difference. First operand 2544 states and 3362 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 12:33:33,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:35,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:37,819 INFO L93 Difference]: Finished difference Result 2544 states and 3362 transitions. [2021-11-17 12:33:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:33:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 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 [2021-11-17 12:33:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:37,832 INFO L225 Difference]: With dead ends: 2544 [2021-11-17 12:33:37,832 INFO L226 Difference]: Without dead ends: 2542 [2021-11-17 12:33:37,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:33:37,834 INFO L933 BasicCegarLoop]: 1802 mSDtfsCounter, 2636 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:37,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2879 Valid, 4074 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1380 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-17 12:33:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2021-11-17 12:33:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2021-11-17 12:33:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 1672 states have (on average 1.2171052631578947) internal successors, (2035), 1737 states have internal predecessors, (2035), 662 states have call successors, (662), 186 states have call predecessors, (662), 185 states have return successors, (663), 659 states have call predecessors, (663), 660 states have call successors, (663) [2021-11-17 12:33:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3360 transitions. [2021-11-17 12:33:37,951 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3360 transitions. Word has length 115 [2021-11-17 12:33:37,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:37,951 INFO L470 AbstractCegarLoop]: Abstraction has 2542 states and 3360 transitions. [2021-11-17 12:33:37,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 12:33:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3360 transitions. [2021-11-17 12:33:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 12:33:37,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:37,954 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-17 12:33:37,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 12:33:37,954 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:37,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:37,955 INFO L85 PathProgramCache]: Analyzing trace with hash -14146037, now seen corresponding path program 1 times [2021-11-17 12:33:37,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:37,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640350930] [2021-11-17 12:33:37,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:37,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:33:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:33:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:33:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:33:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:33:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:33:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:33:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 12:33:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 12:33:38,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:38,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640350930] [2021-11-17 12:33:38,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640350930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:38,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:38,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 12:33:38,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964601748] [2021-11-17 12:33:38,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:38,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 12:33:38,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:38,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 12:33:38,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:33:38,372 INFO L87 Difference]: Start difference. First operand 2542 states and 3360 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-17 12:33:40,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:42,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:44,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:33:48,071 INFO L93 Difference]: Finished difference Result 2607 states and 3452 transitions. [2021-11-17 12:33:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 12:33:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 164 [2021-11-17 12:33:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:33:48,083 INFO L225 Difference]: With dead ends: 2607 [2021-11-17 12:33:48,083 INFO L226 Difference]: Without dead ends: 2605 [2021-11-17 12:33:48,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-17 12:33:48,084 INFO L933 BasicCegarLoop]: 1796 mSDtfsCounter, 1691 mSDsluCounter, 4036 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 1495 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 4197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1495 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-17 12:33:48,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1691 Valid, 5832 Invalid, 4197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1495 Valid, 2699 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2021-11-17 12:33:48,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2021-11-17 12:33:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2548. [2021-11-17 12:33:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1677 states have (on average 1.2164579606440071) internal successors, (2040), 1742 states have internal predecessors, (2040), 662 states have call successors, (662), 186 states have call predecessors, (662), 186 states have return successors, (664), 659 states have call predecessors, (664), 660 states have call successors, (664) [2021-11-17 12:33:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3366 transitions. [2021-11-17 12:33:48,226 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3366 transitions. Word has length 164 [2021-11-17 12:33:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:33:48,228 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 3366 transitions. [2021-11-17 12:33:48,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-17 12:33:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3366 transitions. [2021-11-17 12:33:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 12:33:48,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:33:48,232 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-17 12:33:48,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 12:33:48,232 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:33:48,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:33:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash -14205619, now seen corresponding path program 1 times [2021-11-17 12:33:48,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:33:48,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495158676] [2021-11-17 12:33:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:33:48,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:33:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:33:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:33:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:33:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:33:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:33:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:33:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:33:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:33:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:33:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:33:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:33:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:33:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:33:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:33:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 12:33:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:33:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 12:33:48,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:33:48,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495158676] [2021-11-17 12:33:48,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495158676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:33:48,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:33:48,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 12:33:48,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790392475] [2021-11-17 12:33:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:33:48,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 12:33:48,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:33:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 12:33:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 12:33:48,672 INFO L87 Difference]: Start difference. First operand 2548 states and 3366 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 12:33:50,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:52,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:54,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:33:56,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:02,385 INFO L93 Difference]: Finished difference Result 5102 states and 6775 transitions. [2021-11-17 12:34:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 12:34:02,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 164 [2021-11-17 12:34:02,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:02,397 INFO L225 Difference]: With dead ends: 5102 [2021-11-17 12:34:02,397 INFO L226 Difference]: Without dead ends: 2593 [2021-11-17 12:34:02,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-11-17 12:34:02,408 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 3065 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 4076 mSolverCounterSat, 1757 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 5837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1757 IncrementalHoareTripleChecker+Valid, 4076 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:02,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 6367 Invalid, 5837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1757 Valid, 4076 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2021-11-17 12:34:02,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2021-11-17 12:34:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2542. [2021-11-17 12:34:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 1672 states have (on average 1.2147129186602872) internal successors, (2031), 1736 states have internal predecessors, (2031), 662 states have call successors, (662), 186 states have call predecessors, (662), 186 states have return successors, (664), 659 states have call predecessors, (664), 660 states have call successors, (664) [2021-11-17 12:34:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3357 transitions. [2021-11-17 12:34:02,554 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3357 transitions. Word has length 164 [2021-11-17 12:34:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:02,555 INFO L470 AbstractCegarLoop]: Abstraction has 2542 states and 3357 transitions. [2021-11-17 12:34:02,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 12:34:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3357 transitions. [2021-11-17 12:34:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-17 12:34:02,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:02,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:02,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 12:34:02,557 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash -698388096, now seen corresponding path program 1 times [2021-11-17 12:34:02,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:02,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658040440] [2021-11-17 12:34:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:02,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:34:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:34:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:34:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:34:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:34:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:34:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:34:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:34:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:34:02,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:02,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658040440] [2021-11-17 12:34:02,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658040440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:02,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:02,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:02,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867046013] [2021-11-17 12:34:02,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:02,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:02,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:02,831 INFO L87 Difference]: Start difference. First operand 2542 states and 3357 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 12:34:04,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:06,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:09,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:09,781 INFO L93 Difference]: Finished difference Result 2542 states and 3357 transitions. [2021-11-17 12:34:09,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:34:09,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 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 [2021-11-17 12:34:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:09,792 INFO L225 Difference]: With dead ends: 2542 [2021-11-17 12:34:09,792 INFO L226 Difference]: Without dead ends: 2540 [2021-11-17 12:34:09,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:34:09,793 INFO L933 BasicCegarLoop]: 1797 mSDtfsCounter, 2623 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:09,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 4069 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1375 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:34:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2021-11-17 12:34:09,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2540. [2021-11-17 12:34:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 1671 states have (on average 1.2142429682824656) internal successors, (2029), 1734 states have internal predecessors, (2029), 662 states have call successors, (662), 186 states have call predecessors, (662), 186 states have return successors, (664), 659 states have call predecessors, (664), 660 states have call successors, (664) [2021-11-17 12:34:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3355 transitions. [2021-11-17 12:34:09,924 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3355 transitions. Word has length 121 [2021-11-17 12:34:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:09,924 INFO L470 AbstractCegarLoop]: Abstraction has 2540 states and 3355 transitions. [2021-11-17 12:34:09,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 12:34:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3355 transitions. [2021-11-17 12:34:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-17 12:34:09,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:09,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:09,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 12:34:09,928 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash -317742788, now seen corresponding path program 1 times [2021-11-17 12:34:09,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:09,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844932049] [2021-11-17 12:34:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:09,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:34:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:34:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:34:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:34:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:34:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:34:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:34:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:34:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:34:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:34:10,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:10,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844932049] [2021-11-17 12:34:10,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844932049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:10,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:10,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:10,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272042020] [2021-11-17 12:34:10,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:10,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:10,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:10,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:10,225 INFO L87 Difference]: Start difference. First operand 2540 states and 3355 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 12:34:12,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:14,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:17,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:17,144 INFO L93 Difference]: Finished difference Result 2540 states and 3355 transitions. [2021-11-17 12:34:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:34:17,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 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 [2021-11-17 12:34:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:17,155 INFO L225 Difference]: With dead ends: 2540 [2021-11-17 12:34:17,155 INFO L226 Difference]: Without dead ends: 2538 [2021-11-17 12:34:17,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:34:17,157 INFO L933 BasicCegarLoop]: 1795 mSDtfsCounter, 2617 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:17,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 4067 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1373 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:34:17,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2021-11-17 12:34:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2021-11-17 12:34:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 1670 states have (on average 1.2137724550898203) internal successors, (2027), 1732 states have internal predecessors, (2027), 662 states have call successors, (662), 186 states have call predecessors, (662), 186 states have return successors, (664), 659 states have call predecessors, (664), 660 states have call successors, (664) [2021-11-17 12:34:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3353 transitions. [2021-11-17 12:34:17,275 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3353 transitions. Word has length 127 [2021-11-17 12:34:17,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:17,276 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3353 transitions. [2021-11-17 12:34:17,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 12:34:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3353 transitions. [2021-11-17 12:34:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 12:34:17,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:17,279 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:17,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 12:34:17,279 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:17,280 INFO L85 PathProgramCache]: Analyzing trace with hash 997131382, now seen corresponding path program 1 times [2021-11-17 12:34:17,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:17,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781299032] [2021-11-17 12:34:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:17,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:34:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:34:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:34:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:34:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:34:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:34:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:34:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:34:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 12:34:17,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:17,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781299032] [2021-11-17 12:34:17,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781299032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:17,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:17,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:17,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093189438] [2021-11-17 12:34:17,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:17,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:17,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:17,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:17,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:17,622 INFO L87 Difference]: Start difference. First operand 2538 states and 3353 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 12:34:19,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:21,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:23,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:26,539 INFO L93 Difference]: Finished difference Result 5082 states and 6749 transitions. [2021-11-17 12:34:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:34:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2021-11-17 12:34:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:26,551 INFO L225 Difference]: With dead ends: 5082 [2021-11-17 12:34:26,551 INFO L226 Difference]: Without dead ends: 2583 [2021-11-17 12:34:26,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:34:26,561 INFO L933 BasicCegarLoop]: 1785 mSDtfsCounter, 3031 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 1752 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3292 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 2959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:26,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3292 Valid, 3444 Invalid, 2959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1752 Valid, 1204 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2021-11-17 12:34:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2021-11-17 12:34:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2532. [2021-11-17 12:34:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 1665 states have (on average 1.212012012012012) internal successors, (2018), 1726 states have internal predecessors, (2018), 662 states have call successors, (662), 186 states have call predecessors, (662), 186 states have return successors, (664), 659 states have call predecessors, (664), 660 states have call successors, (664) [2021-11-17 12:34:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3344 transitions. [2021-11-17 12:34:26,716 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3344 transitions. Word has length 171 [2021-11-17 12:34:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:26,718 INFO L470 AbstractCegarLoop]: Abstraction has 2532 states and 3344 transitions. [2021-11-17 12:34:26,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 12:34:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3344 transitions. [2021-11-17 12:34:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-17 12:34:26,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:26,721 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 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] [2021-11-17 12:34:26,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 12:34:26,722 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:26,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1008346903, now seen corresponding path program 1 times [2021-11-17 12:34:26,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:26,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376722966] [2021-11-17 12:34:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:26,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:34:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:34:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:34:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 12:34:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 12:34:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 12:34:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:34:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:34:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:34:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-17 12:34:27,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:27,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376722966] [2021-11-17 12:34:27,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376722966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:27,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:27,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 12:34:27,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517278606] [2021-11-17 12:34:27,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:27,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 12:34:27,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:27,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 12:34:27,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:34:27,128 INFO L87 Difference]: Start difference. First operand 2532 states and 3344 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 12:34:29,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:31,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:33,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:40,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:40,078 INFO L93 Difference]: Finished difference Result 3774 states and 4986 transitions. [2021-11-17 12:34:40,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 12:34:40,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2021-11-17 12:34:40,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:40,094 INFO L225 Difference]: With dead ends: 3774 [2021-11-17 12:34:40,094 INFO L226 Difference]: Without dead ends: 3772 [2021-11-17 12:34:40,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-17 12:34:40,097 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 3433 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 2219 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 6307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2219 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:40,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3665 Valid, 7161 Invalid, 6307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2219 Valid, 4085 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2021-11-17 12:34:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2021-11-17 12:34:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3666. [2021-11-17 12:34:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 2419 states have (on average 1.2153782554774701) internal successors, (2940), 2518 states have internal predecessors, (2940), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:34:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 4862 transitions. [2021-11-17 12:34:40,290 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 4862 transitions. Word has length 162 [2021-11-17 12:34:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:40,290 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 4862 transitions. [2021-11-17 12:34:40,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 12:34:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 4862 transitions. [2021-11-17 12:34:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-17 12:34:40,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:40,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:40,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 12:34:40,293 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:40,293 INFO L85 PathProgramCache]: Analyzing trace with hash -55283042, now seen corresponding path program 1 times [2021-11-17 12:34:40,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:40,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474793452] [2021-11-17 12:34:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:40,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:34:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:34:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:34:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:34:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:34:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:34:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:34:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:34:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:34:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:34:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:34:40,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:40,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474793452] [2021-11-17 12:34:40,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474793452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:40,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:40,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:40,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195174283] [2021-11-17 12:34:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:40,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:40,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:40,623 INFO L87 Difference]: Start difference. First operand 3666 states and 4862 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 12:34:42,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:44,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:47,673 INFO L93 Difference]: Finished difference Result 3666 states and 4862 transitions. [2021-11-17 12:34:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:34:47,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 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 [2021-11-17 12:34:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:47,688 INFO L225 Difference]: With dead ends: 3666 [2021-11-17 12:34:47,689 INFO L226 Difference]: Without dead ends: 3664 [2021-11-17 12:34:47,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:34:47,692 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 2596 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:47,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2836 Valid, 4060 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1366 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 12:34:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2021-11-17 12:34:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3664. [2021-11-17 12:34:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 2418 states have (on average 1.2146401985111663) internal successors, (2937), 2516 states have internal predecessors, (2937), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:34:47,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 4859 transitions. [2021-11-17 12:34:47,884 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 4859 transitions. Word has length 133 [2021-11-17 12:34:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:47,885 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 4859 transitions. [2021-11-17 12:34:47,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 12:34:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 4859 transitions. [2021-11-17 12:34:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-17 12:34:47,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:47,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:47,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 12:34:47,887 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1607864734, now seen corresponding path program 1 times [2021-11-17 12:34:47,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:47,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558392077] [2021-11-17 12:34:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:47,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:34:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:34:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:34:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:34:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:34:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:34:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:34:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:34:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:34:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:34:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:34:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:34:48,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:48,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558392077] [2021-11-17 12:34:48,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558392077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:48,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:48,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:48,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911812105] [2021-11-17 12:34:48,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:48,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:48,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:48,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:48,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:48,162 INFO L87 Difference]: Start difference. First operand 3664 states and 4859 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 12:34:50,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:52,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:55,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:34:55,213 INFO L93 Difference]: Finished difference Result 3664 states and 4859 transitions. [2021-11-17 12:34:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:34:55,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 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 [2021-11-17 12:34:55,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:34:55,227 INFO L225 Difference]: With dead ends: 3664 [2021-11-17 12:34:55,228 INFO L226 Difference]: Without dead ends: 3662 [2021-11-17 12:34:55,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:34:55,231 INFO L933 BasicCegarLoop]: 1786 mSDtfsCounter, 2590 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2829 SdHoareTripleChecker+Valid, 4058 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:34:55,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2829 Valid, 4058 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1364 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 12:34:55,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2021-11-17 12:34:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3662. [2021-11-17 12:34:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 2417 states have (on average 1.2139015308233347) internal successors, (2934), 2514 states have internal predecessors, (2934), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:34:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 4856 transitions. [2021-11-17 12:34:55,437 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 4856 transitions. Word has length 139 [2021-11-17 12:34:55,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:34:55,438 INFO L470 AbstractCegarLoop]: Abstraction has 3662 states and 4856 transitions. [2021-11-17 12:34:55,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 12:34:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 4856 transitions. [2021-11-17 12:34:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-17 12:34:55,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:34:55,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:34:55,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 12:34:55,441 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:34:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:34:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1463516612, now seen corresponding path program 1 times [2021-11-17 12:34:55,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:34:55,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891597158] [2021-11-17 12:34:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:34:55,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:34:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:34:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:34:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:34:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:34:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:34:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:34:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:34:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:34:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:34:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:34:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:34:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:34:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:34:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:34:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:34:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:34:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:34:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:34:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:34:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:34:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:34:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:34:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:34:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:34:55,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:34:55,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891597158] [2021-11-17 12:34:55,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891597158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:34:55,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:34:55,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:34:55,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377659335] [2021-11-17 12:34:55,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:34:55,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:34:55,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:34:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:34:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:34:55,733 INFO L87 Difference]: Start difference. First operand 3662 states and 4856 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 12:34:57,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:34:59,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:02,155 INFO L93 Difference]: Finished difference Result 3662 states and 4856 transitions. [2021-11-17 12:35:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:02,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 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 [2021-11-17 12:35:02,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:02,170 INFO L225 Difference]: With dead ends: 3662 [2021-11-17 12:35:02,170 INFO L226 Difference]: Without dead ends: 3660 [2021-11-17 12:35:02,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:35:02,173 INFO L933 BasicCegarLoop]: 1784 mSDtfsCounter, 2584 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 1246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:02,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2822 Valid, 4056 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1363 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-17 12:35:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2021-11-17 12:35:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3660. [2021-11-17 12:35:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2416 states have (on average 1.213162251655629) internal successors, (2931), 2512 states have internal predecessors, (2931), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:35:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 4853 transitions. [2021-11-17 12:35:02,403 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 4853 transitions. Word has length 145 [2021-11-17 12:35:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:02,403 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 4853 transitions. [2021-11-17 12:35:02,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 12:35:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 4853 transitions. [2021-11-17 12:35:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 12:35:02,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:02,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:02,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 12:35:02,407 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1503938958, now seen corresponding path program 1 times [2021-11-17 12:35:02,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:02,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706099877] [2021-11-17 12:35:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:02,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:02,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:02,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706099877] [2021-11-17 12:35:02,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706099877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:02,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:02,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:02,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905291909] [2021-11-17 12:35:02,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:02,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:02,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:02,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:02,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:02,695 INFO L87 Difference]: Start difference. First operand 3660 states and 4853 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 12:35:04,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:06,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:09,693 INFO L93 Difference]: Finished difference Result 3660 states and 4853 transitions. [2021-11-17 12:35:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 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 [2021-11-17 12:35:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:09,708 INFO L225 Difference]: With dead ends: 3660 [2021-11-17 12:35:09,709 INFO L226 Difference]: Without dead ends: 3658 [2021-11-17 12:35:09,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:35:09,712 INFO L933 BasicCegarLoop]: 1782 mSDtfsCounter, 2578 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:09,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 4054 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1360 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:35:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2021-11-17 12:35:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2021-11-17 12:35:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2415 states have (on average 1.2124223602484472) internal successors, (2928), 2510 states have internal predecessors, (2928), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:35:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 4850 transitions. [2021-11-17 12:35:09,981 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 4850 transitions. Word has length 151 [2021-11-17 12:35:09,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:09,982 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 4850 transitions. [2021-11-17 12:35:09,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 12:35:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 4850 transitions. [2021-11-17 12:35:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-17 12:35:09,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:09,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:09,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 12:35:09,985 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1417507331, now seen corresponding path program 1 times [2021-11-17 12:35:09,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:09,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039166305] [2021-11-17 12:35:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:09,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:35:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:10,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:10,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039166305] [2021-11-17 12:35:10,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039166305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:10,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:10,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:10,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222666405] [2021-11-17 12:35:10,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:10,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:10,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:10,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:10,296 INFO L87 Difference]: Start difference. First operand 3658 states and 4850 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 12:35:12,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:14,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:17,312 INFO L93 Difference]: Finished difference Result 3658 states and 4850 transitions. [2021-11-17 12:35:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 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 [2021-11-17 12:35:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:17,328 INFO L225 Difference]: With dead ends: 3658 [2021-11-17 12:35:17,328 INFO L226 Difference]: Without dead ends: 3656 [2021-11-17 12:35:17,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:35:17,335 INFO L933 BasicCegarLoop]: 1780 mSDtfsCounter, 2572 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2808 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:17,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2808 Valid, 4052 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1358 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:35:17,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2021-11-17 12:35:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3656. [2021-11-17 12:35:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 2414 states have (on average 1.211681855840928) internal successors, (2925), 2508 states have internal predecessors, (2925), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:35:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 4847 transitions. [2021-11-17 12:35:17,583 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 4847 transitions. Word has length 157 [2021-11-17 12:35:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:17,584 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 4847 transitions. [2021-11-17 12:35:17,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 12:35:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 4847 transitions. [2021-11-17 12:35:17,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-17 12:35:17,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:17,587 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-17 12:35:17,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 12:35:17,588 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:17,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1969499330, now seen corresponding path program 1 times [2021-11-17 12:35:17,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:17,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57454808] [2021-11-17 12:35:17,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:17,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:35:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:35:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:35:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:35:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:35:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:35:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:35:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 12:35:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 12:35:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-17 12:35:17,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:17,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57454808] [2021-11-17 12:35:17,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57454808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:17,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:17,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 12:35:17,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885292573] [2021-11-17 12:35:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:17,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 12:35:17,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 12:35:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:35:17,990 INFO L87 Difference]: Start difference. First operand 3656 states and 4847 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 12:35:20,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:22,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:24,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:29,374 INFO L93 Difference]: Finished difference Result 6739 states and 8945 transitions. [2021-11-17 12:35:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 200 [2021-11-17 12:35:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:29,392 INFO L225 Difference]: With dead ends: 6739 [2021-11-17 12:35:29,392 INFO L226 Difference]: Without dead ends: 3745 [2021-11-17 12:35:29,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:35:29,405 INFO L933 BasicCegarLoop]: 1492 mSDtfsCounter, 3020 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 1824 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1824 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:29,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3296 Valid, 3480 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1824 Valid, 2320 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 12:35:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2021-11-17 12:35:29,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 3650. [2021-11-17 12:35:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 2409 states have (on average 1.2104607721046077) internal successors, (2916), 2502 states have internal predecessors, (2916), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:35:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 4838 transitions. [2021-11-17 12:35:29,678 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 4838 transitions. Word has length 200 [2021-11-17 12:35:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:29,679 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 4838 transitions. [2021-11-17 12:35:29,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 12:35:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 4838 transitions. [2021-11-17 12:35:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 12:35:29,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:29,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:29,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 12:35:29,683 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:29,684 INFO L85 PathProgramCache]: Analyzing trace with hash -767542750, now seen corresponding path program 1 times [2021-11-17 12:35:29,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:29,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409496148] [2021-11-17 12:35:29,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:29,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:35:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:35:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:29,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:29,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409496148] [2021-11-17 12:35:29,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409496148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:29,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:29,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:29,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398124917] [2021-11-17 12:35:29,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:29,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:29,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:29,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:29,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:29,981 INFO L87 Difference]: Start difference. First operand 3650 states and 4838 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 12:35:32,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:34,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:37,091 INFO L93 Difference]: Finished difference Result 3650 states and 4838 transitions. [2021-11-17 12:35:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 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 [2021-11-17 12:35:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:37,103 INFO L225 Difference]: With dead ends: 3650 [2021-11-17 12:35:37,104 INFO L226 Difference]: Without dead ends: 3648 [2021-11-17 12:35:37,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:35:37,107 INFO L933 BasicCegarLoop]: 1773 mSDtfsCounter, 2561 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 4031 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:37,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 4031 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1355 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 12:35:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-11-17 12:35:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3648. [2021-11-17 12:35:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 2408 states have (on average 1.209717607973422) internal successors, (2913), 2500 states have internal predecessors, (2913), 954 states have call successors, (954), 278 states have call predecessors, (954), 274 states have return successors, (968), 925 states have call predecessors, (968), 952 states have call successors, (968) [2021-11-17 12:35:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4835 transitions. [2021-11-17 12:35:37,346 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4835 transitions. Word has length 163 [2021-11-17 12:35:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:37,347 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 4835 transitions. [2021-11-17 12:35:37,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 12:35:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4835 transitions. [2021-11-17 12:35:37,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-17 12:35:37,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:37,351 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-17 12:35:37,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 12:35:37,351 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:37,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:37,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1635627661, now seen corresponding path program 1 times [2021-11-17 12:35:37,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:37,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534866165] [2021-11-17 12:35:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:37,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:35:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:35:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:35:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:35:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:35:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:35:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:35:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:35:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:35:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 12:35:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 12:35:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:35:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-17 12:35:37,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:37,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534866165] [2021-11-17 12:35:37,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534866165] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:35:37,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96478715] [2021-11-17 12:35:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:37,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:35:37,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:35:37,736 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) [2021-11-17 12:35:37,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 12:35:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:38,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 3081 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 12:35:38,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:35:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 12:35:38,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:35:38,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96478715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:38,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:35:38,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-11-17 12:35:38,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384153399] [2021-11-17 12:35:38,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:38,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 12:35:38,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:38,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 12:35:38,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:35:38,923 INFO L87 Difference]: Start difference. First operand 3648 states and 4835 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 12:35:39,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:39,116 INFO L93 Difference]: Finished difference Result 6678 states and 8812 transitions. [2021-11-17 12:35:39,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 12:35:39,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2021-11-17 12:35:39,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:39,128 INFO L225 Difference]: With dead ends: 6678 [2021-11-17 12:35:39,128 INFO L226 Difference]: Without dead ends: 3698 [2021-11-17 12:35:39,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:35:39,139 INFO L933 BasicCegarLoop]: 1955 mSDtfsCounter, 1829 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:39,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 2022 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 12:35:39,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2021-11-17 12:35:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3695. [2021-11-17 12:35:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2435 states have (on average 1.206981519507187) internal successors, (2939), 2530 states have internal predecessors, (2939), 969 states have call successors, (969), 284 states have call predecessors, (969), 280 states have return successors, (983), 938 states have call predecessors, (983), 967 states have call successors, (983) [2021-11-17 12:35:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 4891 transitions. [2021-11-17 12:35:39,407 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 4891 transitions. Word has length 206 [2021-11-17 12:35:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:39,408 INFO L470 AbstractCegarLoop]: Abstraction has 3695 states and 4891 transitions. [2021-11-17 12:35:39,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 12:35:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 4891 transitions. [2021-11-17 12:35:39,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-17 12:35:39,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:39,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:39,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 12:35:39,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-17 12:35:39,633 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:39,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash 874405140, now seen corresponding path program 1 times [2021-11-17 12:35:39,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:39,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066175441] [2021-11-17 12:35:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:39,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:35:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:35:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 12:35:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:39,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:39,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066175441] [2021-11-17 12:35:39,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066175441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:39,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:39,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:39,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578695513] [2021-11-17 12:35:39,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:39,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:39,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:39,946 INFO L87 Difference]: Start difference. First operand 3695 states and 4891 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 12:35:41,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:44,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:46,892 INFO L93 Difference]: Finished difference Result 3695 states and 4891 transitions. [2021-11-17 12:35:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:35:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 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 [2021-11-17 12:35:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:46,901 INFO L225 Difference]: With dead ends: 3695 [2021-11-17 12:35:46,901 INFO L226 Difference]: Without dead ends: 3693 [2021-11-17 12:35:46,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:35:46,904 INFO L933 BasicCegarLoop]: 1766 mSDtfsCounter, 2550 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:46,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 4010 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1352 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 12:35:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2021-11-17 12:35:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2021-11-17 12:35:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2434 states have (on average 1.2062448644207067) internal successors, (2936), 2528 states have internal predecessors, (2936), 969 states have call successors, (969), 284 states have call predecessors, (969), 280 states have return successors, (983), 938 states have call predecessors, (983), 967 states have call successors, (983) [2021-11-17 12:35:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 4888 transitions. [2021-11-17 12:35:47,181 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 4888 transitions. Word has length 169 [2021-11-17 12:35:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:47,182 INFO L470 AbstractCegarLoop]: Abstraction has 3693 states and 4888 transitions. [2021-11-17 12:35:47,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 12:35:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 4888 transitions. [2021-11-17 12:35:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 12:35:47,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:47,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:47,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 12:35:47,186 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1568901775, now seen corresponding path program 1 times [2021-11-17 12:35:47,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:47,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082330012] [2021-11-17 12:35:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:47,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:35:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:35:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 12:35:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 12:35:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:47,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:47,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082330012] [2021-11-17 12:35:47,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082330012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:47,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:47,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:47,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901581640] [2021-11-17 12:35:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:47,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:47,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:47,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:47,462 INFO L87 Difference]: Start difference. First operand 3693 states and 4888 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 12:35:49,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:51,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:35:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:35:56,729 INFO L93 Difference]: Finished difference Result 7226 states and 9569 transitions. [2021-11-17 12:35:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 12:35:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 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 [2021-11-17 12:35:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:35:56,744 INFO L225 Difference]: With dead ends: 7226 [2021-11-17 12:35:56,744 INFO L226 Difference]: Without dead ends: 7224 [2021-11-17 12:35:56,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:35:56,747 INFO L933 BasicCegarLoop]: 2468 mSDtfsCounter, 3362 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 1971 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3589 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 4921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1971 IncrementalHoareTripleChecker+Valid, 2948 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:35:56,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3589 Valid, 6637 Invalid, 4921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1971 Valid, 2948 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-17 12:35:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7224 states. [2021-11-17 12:35:57,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7224 to 7185. [2021-11-17 12:35:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7185 states, 4736 states have (on average 1.2052364864864864) internal successors, (5708), 4909 states have internal predecessors, (5708), 1890 states have call successors, (1890), 556 states have call predecessors, (1890), 549 states have return successors, (1933), 1831 states have call predecessors, (1933), 1888 states have call successors, (1933) [2021-11-17 12:35:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7185 states to 7185 states and 9531 transitions. [2021-11-17 12:35:57,306 INFO L78 Accepts]: Start accepts. Automaton has 7185 states and 9531 transitions. Word has length 175 [2021-11-17 12:35:57,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:35:57,306 INFO L470 AbstractCegarLoop]: Abstraction has 7185 states and 9531 transitions. [2021-11-17 12:35:57,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 12:35:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7185 states and 9531 transitions. [2021-11-17 12:35:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-17 12:35:57,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:35:57,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:35:57,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 12:35:57,312 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:35:57,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:35:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1393068135, now seen corresponding path program 1 times [2021-11-17 12:35:57,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:35:57,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351449857] [2021-11-17 12:35:57,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:35:57,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:35:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:35:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:35:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:35:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:35:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:35:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:35:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:35:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:35:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:35:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:35:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:35:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:35:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:35:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:35:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:35:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:35:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:35:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:35:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:35:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:35:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:35:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:35:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:35:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:35:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:35:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 12:35:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 12:35:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 12:35:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:35:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:35:57,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:35:57,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351449857] [2021-11-17 12:35:57,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351449857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:35:57,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:35:57,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:35:57,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798025635] [2021-11-17 12:35:57,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:35:57,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:35:57,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:35:57,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:35:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:35:57,628 INFO L87 Difference]: Start difference. First operand 7185 states and 9531 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 12:35:59,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:01,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:36:05,121 INFO L93 Difference]: Finished difference Result 7185 states and 9531 transitions. [2021-11-17 12:36:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:36:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2021-11-17 12:36:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:36:05,147 INFO L225 Difference]: With dead ends: 7185 [2021-11-17 12:36:05,147 INFO L226 Difference]: Without dead ends: 7183 [2021-11-17 12:36:05,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:36:05,152 INFO L933 BasicCegarLoop]: 1764 mSDtfsCounter, 2544 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 1246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:36:05,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2776 Valid, 4008 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1350 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-11-17 12:36:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2021-11-17 12:36:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 7183. [2021-11-17 12:36:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7183 states, 4735 states have (on average 1.2048574445617741) internal successors, (5705), 4907 states have internal predecessors, (5705), 1890 states have call successors, (1890), 556 states have call predecessors, (1890), 549 states have return successors, (1933), 1831 states have call predecessors, (1933), 1888 states have call successors, (1933) [2021-11-17 12:36:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 9528 transitions. [2021-11-17 12:36:05,652 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 9528 transitions. Word has length 181 [2021-11-17 12:36:05,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:36:05,653 INFO L470 AbstractCegarLoop]: Abstraction has 7183 states and 9528 transitions. [2021-11-17 12:36:05,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 12:36:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 9528 transitions. [2021-11-17 12:36:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 12:36:05,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:36:05,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:36:05,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-17 12:36:05,658 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:36:05,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:36:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1300630891, now seen corresponding path program 1 times [2021-11-17 12:36:05,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:36:05,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036261265] [2021-11-17 12:36:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:36:05,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:36:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:36:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:36:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:36:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:36:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:36:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:36:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:36:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:36:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:36:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 12:36:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:36:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 12:36:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 12:36:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:36:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 12:36:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:36:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 12:36:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 12:36:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:36:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 12:36:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:36:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:36:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:36:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:36:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 12:36:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 12:36:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 12:36:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:36:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 12:36:05,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:36:05,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036261265] [2021-11-17 12:36:05,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036261265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:36:05,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:36:05,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:36:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481226834] [2021-11-17 12:36:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:36:05,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:36:05,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:36:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:36:05,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:36:05,970 INFO L87 Difference]: Start difference. First operand 7183 states and 9528 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 12:36:08,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:10,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:36:16,157 INFO L93 Difference]: Finished difference Result 14186 states and 18832 transitions. [2021-11-17 12:36:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 12:36:16,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 187 [2021-11-17 12:36:16,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:36:16,206 INFO L225 Difference]: With dead ends: 14186 [2021-11-17 12:36:16,206 INFO L226 Difference]: Without dead ends: 13863 [2021-11-17 12:36:16,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:36:16,218 INFO L933 BasicCegarLoop]: 2196 mSDtfsCounter, 3535 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 2089 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3761 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 4925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2089 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:36:16,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3761 Valid, 5964 Invalid, 4925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2089 Valid, 2834 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-17 12:36:16,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2021-11-17 12:36:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13833. [2021-11-17 12:36:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13833 states, 9118 states have (on average 1.207501645097609) internal successors, (11010), 9443 states have internal predecessors, (11010), 3659 states have call successors, (3659), 1062 states have call predecessors, (3659), 1047 states have return successors, (3771), 3547 states have call predecessors, (3771), 3653 states have call successors, (3771) [2021-11-17 12:36:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13833 states to 13833 states and 18440 transitions. [2021-11-17 12:36:17,126 INFO L78 Accepts]: Start accepts. Automaton has 13833 states and 18440 transitions. Word has length 187 [2021-11-17 12:36:17,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:36:17,127 INFO L470 AbstractCegarLoop]: Abstraction has 13833 states and 18440 transitions. [2021-11-17 12:36:17,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 12:36:17,127 INFO L276 IsEmpty]: Start isEmpty. Operand 13833 states and 18440 transitions. [2021-11-17 12:36:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-17 12:36:17,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:36:17,131 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:36:17,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-17 12:36:17,132 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:36:17,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:36:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash 256543429, now seen corresponding path program 1 times [2021-11-17 12:36:17,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:36:17,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842692066] [2021-11-17 12:36:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:36:17,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:36:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:36:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:36:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:36:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:36:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:36:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:36:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:36:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:36:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:36:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:36:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:36:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:36:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:36:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:36:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:36:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:36:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:36:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:36:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:36:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:36:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 12:36:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 12:36:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:36:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 12:36:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:36:17,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:36:17,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842692066] [2021-11-17 12:36:17,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842692066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:36:17,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:36:17,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 12:36:17,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169761221] [2021-11-17 12:36:17,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:36:17,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 12:36:17,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:36:17,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 12:36:17,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:36:17,559 INFO L87 Difference]: Start difference. First operand 13833 states and 18440 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 12:36:19,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:21,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:23,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:25,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:28,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:30,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:36:42,230 INFO L93 Difference]: Finished difference Result 28731 states and 39621 transitions. [2021-11-17 12:36:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-17 12:36:42,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 247 [2021-11-17 12:36:42,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:36:42,334 INFO L225 Difference]: With dead ends: 28731 [2021-11-17 12:36:42,335 INFO L226 Difference]: Without dead ends: 28729 [2021-11-17 12:36:42,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2021-11-17 12:36:42,355 INFO L933 BasicCegarLoop]: 2434 mSDtfsCounter, 5294 mSDsluCounter, 8075 mSDsCounter, 0 mSdLazyCounter, 9028 mSolverCounterSat, 4317 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 10509 SdHoareTripleChecker+Invalid, 13351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4317 IncrementalHoareTripleChecker+Valid, 9028 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2021-11-17 12:36:42,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5538 Valid, 10509 Invalid, 13351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4317 Valid, 9028 Invalid, 6 Unknown, 0 Unchecked, 22.6s Time] [2021-11-17 12:36:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28729 states. [2021-11-17 12:36:43,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28729 to 26750. [2021-11-17 12:36:44,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26750 states, 17666 states have (on average 1.2218951658553152) internal successors, (21586), 18346 states have internal predecessors, (21586), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2011 states have return successors, (8248), 6953 states have call predecessors, (8248), 7058 states have call successors, (8248) [2021-11-17 12:36:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26750 states to 26750 states and 36898 transitions. [2021-11-17 12:36:44,139 INFO L78 Accepts]: Start accepts. Automaton has 26750 states and 36898 transitions. Word has length 247 [2021-11-17 12:36:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:36:44,140 INFO L470 AbstractCegarLoop]: Abstraction has 26750 states and 36898 transitions. [2021-11-17 12:36:44,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 12:36:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 26750 states and 36898 transitions. [2021-11-17 12:36:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 12:36:44,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:36:44,145 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:36:44,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-17 12:36:44,145 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:36:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:36:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1340036498, now seen corresponding path program 1 times [2021-11-17 12:36:44,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:36:44,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582742781] [2021-11-17 12:36:44,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:36:44,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:36:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:36:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:36:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:36:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:36:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:36:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:36:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:36:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:36:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:36:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:36:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:36:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:36:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:36:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:36:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:36:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:36:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:36:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:36:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:36:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:36:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:36:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:36:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:36:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:36:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:36:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:36:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:36:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:36:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:36:44,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:36:44,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582742781] [2021-11-17 12:36:44,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582742781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:36:44,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:36:44,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 12:36:44,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793859168] [2021-11-17 12:36:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:36:44,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 12:36:44,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:36:44,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 12:36:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-17 12:36:44,656 INFO L87 Difference]: Start difference. First operand 26750 states and 36898 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:36:46,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:48,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:50,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:53,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:55,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:36:57,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:37:06,533 INFO L93 Difference]: Finished difference Result 53851 states and 76176 transitions. [2021-11-17 12:37:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 12:37:06,534 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 254 [2021-11-17 12:37:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:37:06,644 INFO L225 Difference]: With dead ends: 53851 [2021-11-17 12:37:06,645 INFO L226 Difference]: Without dead ends: 27969 [2021-11-17 12:37:06,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2021-11-17 12:37:06,734 INFO L933 BasicCegarLoop]: 1752 mSDtfsCounter, 2672 mSDsluCounter, 7985 mSDsCounter, 0 mSdLazyCounter, 5956 mSolverCounterSat, 2602 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 9737 SdHoareTripleChecker+Invalid, 8563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2602 IncrementalHoareTripleChecker+Valid, 5956 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:37:06,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2672 Valid, 9737 Invalid, 8563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2602 Valid, 5956 Invalid, 5 Unknown, 0 Unchecked, 19.7s Time] [2021-11-17 12:37:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27969 states. [2021-11-17 12:37:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27969 to 26878. [2021-11-17 12:37:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26878 states, 17778 states have (on average 1.2204972437844528) internal successors, (21698), 18442 states have internal predecessors, (21698), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2027 states have return successors, (8344), 6985 states have call predecessors, (8344), 7058 states have call successors, (8344) [2021-11-17 12:37:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26878 states to 26878 states and 37106 transitions. [2021-11-17 12:37:08,495 INFO L78 Accepts]: Start accepts. Automaton has 26878 states and 37106 transitions. Word has length 254 [2021-11-17 12:37:08,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:37:08,495 INFO L470 AbstractCegarLoop]: Abstraction has 26878 states and 37106 transitions. [2021-11-17 12:37:08,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:08,496 INFO L276 IsEmpty]: Start isEmpty. Operand 26878 states and 37106 transitions. [2021-11-17 12:37:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 12:37:08,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:37:08,500 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:37:08,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-17 12:37:08,500 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:37:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:37:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash -352230769, now seen corresponding path program 1 times [2021-11-17 12:37:08,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:37:08,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376900399] [2021-11-17 12:37:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:37:08,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:37:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:37:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:37:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:37:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:37:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:37:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:37:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:37:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:37:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:37:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:37:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:37:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:37:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:37:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:37:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:37:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:37:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:37:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:37:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:37:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:37:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:37:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:37:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:37:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 12:37:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:37:09,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:37:09,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376900399] [2021-11-17 12:37:09,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376900399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:37:09,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:37:09,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 12:37:09,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226517909] [2021-11-17 12:37:09,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:37:09,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:37:09,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:37:09,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:37:09,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:37:09,091 INFO L87 Difference]: Start difference. First operand 26878 states and 37106 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:11,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:13,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:15,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:17,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:37:26,923 INFO L93 Difference]: Finished difference Result 55011 states and 78504 transitions. [2021-11-17 12:37:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 12:37:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 253 [2021-11-17 12:37:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:37:27,068 INFO L225 Difference]: With dead ends: 55011 [2021-11-17 12:37:27,069 INFO L226 Difference]: Without dead ends: 28865 [2021-11-17 12:37:27,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-11-17 12:37:27,167 INFO L933 BasicCegarLoop]: 1780 mSDtfsCounter, 2343 mSDsluCounter, 7200 mSDsCounter, 0 mSdLazyCounter, 5991 mSolverCounterSat, 2203 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 8198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2203 IncrementalHoareTripleChecker+Valid, 5991 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:37:27,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2343 Valid, 8980 Invalid, 8198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2203 Valid, 5991 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2021-11-17 12:37:27,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28865 states. [2021-11-17 12:37:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28865 to 26942. [2021-11-17 12:37:28,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26942 states, 17842 states have (on average 1.219706310951687) internal successors, (21762), 18474 states have internal predecessors, (21762), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2027 states have return successors, (8344), 7017 states have call predecessors, (8344), 7058 states have call successors, (8344) [2021-11-17 12:37:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26942 states to 26942 states and 37170 transitions. [2021-11-17 12:37:29,074 INFO L78 Accepts]: Start accepts. Automaton has 26942 states and 37170 transitions. Word has length 253 [2021-11-17 12:37:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:37:29,075 INFO L470 AbstractCegarLoop]: Abstraction has 26942 states and 37170 transitions. [2021-11-17 12:37:29,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 26942 states and 37170 transitions. [2021-11-17 12:37:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 12:37:29,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:37:29,078 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:37:29,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-17 12:37:29,078 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:37:29,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:37:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash 229096446, now seen corresponding path program 1 times [2021-11-17 12:37:29,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:37:29,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009612030] [2021-11-17 12:37:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:37:29,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:37:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:37:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:37:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:37:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:37:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:37:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:37:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:37:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:37:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:37:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:37:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:37:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:37:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:37:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:37:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:37:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:37:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:37:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:37:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:37:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:37:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:37:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:37:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:37:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 12:37:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:37:29,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:37:29,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009612030] [2021-11-17 12:37:29,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009612030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:37:29,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:37:29,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 12:37:29,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172040673] [2021-11-17 12:37:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:37:29,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:37:29,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:37:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:37:29,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:37:29,499 INFO L87 Difference]: Start difference. First operand 26942 states and 37170 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:31,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:33,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:35,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:37,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:40,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:41,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:37:51,235 INFO L93 Difference]: Finished difference Result 55171 states and 78664 transitions. [2021-11-17 12:37:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 12:37:51,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 254 [2021-11-17 12:37:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:37:51,379 INFO L225 Difference]: With dead ends: 55171 [2021-11-17 12:37:51,379 INFO L226 Difference]: Without dead ends: 28961 [2021-11-17 12:37:51,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-11-17 12:37:51,473 INFO L933 BasicCegarLoop]: 1777 mSDtfsCounter, 2357 mSDsluCounter, 6729 mSDsCounter, 0 mSdLazyCounter, 5294 mSolverCounterSat, 2209 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 8506 SdHoareTripleChecker+Invalid, 7508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2209 IncrementalHoareTripleChecker+Valid, 5294 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:37:51,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2357 Valid, 8506 Invalid, 7508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2209 Valid, 5294 Invalid, 5 Unknown, 0 Unchecked, 19.3s Time] [2021-11-17 12:37:51,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28961 states. [2021-11-17 12:37:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28961 to 27006. [2021-11-17 12:37:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27006 states, 17906 states have (on average 1.218921032056294) internal successors, (21826), 18506 states have internal predecessors, (21826), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2027 states have return successors, (8344), 7049 states have call predecessors, (8344), 7058 states have call successors, (8344) [2021-11-17 12:37:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27006 states to 27006 states and 37234 transitions. [2021-11-17 12:37:53,339 INFO L78 Accepts]: Start accepts. Automaton has 27006 states and 37234 transitions. Word has length 254 [2021-11-17 12:37:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:37:53,340 INFO L470 AbstractCegarLoop]: Abstraction has 27006 states and 37234 transitions. [2021-11-17 12:37:53,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 27006 states and 37234 transitions. [2021-11-17 12:37:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-17 12:37:53,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:37:53,344 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:37:53,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-17 12:37:53,344 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:37:53,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:37:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1789484111, now seen corresponding path program 1 times [2021-11-17 12:37:53,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:37:53,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036157827] [2021-11-17 12:37:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:37:53,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:37:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:37:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:37:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:37:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:37:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:37:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:37:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:37:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:37:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:37:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:37:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:37:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:37:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:37:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:37:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:37:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:37:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:37:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:37:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:37:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:37:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:37:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:37:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:37:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:37:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:37:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:37:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:37:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:37:53,841 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:37:53,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:37:53,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036157827] [2021-11-17 12:37:53,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036157827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:37:53,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:37:53,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 12:37:53,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777127348] [2021-11-17 12:37:53,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:37:53,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:37:53,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:37:53,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:37:53,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:37:53,843 INFO L87 Difference]: Start difference. First operand 27006 states and 37234 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:37:55,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:37:58,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:00,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:02,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:04,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:06,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:38:15,021 INFO L93 Difference]: Finished difference Result 44002 states and 61624 transitions. [2021-11-17 12:38:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 12:38:15,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 256 [2021-11-17 12:38:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:38:15,127 INFO L225 Difference]: With dead ends: 44002 [2021-11-17 12:38:15,127 INFO L226 Difference]: Without dead ends: 27873 [2021-11-17 12:38:15,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2021-11-17 12:38:15,182 INFO L933 BasicCegarLoop]: 1737 mSDtfsCounter, 2624 mSDsluCounter, 6762 mSDsCounter, 0 mSdLazyCounter, 4941 mSolverCounterSat, 2574 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 8499 SdHoareTripleChecker+Invalid, 7521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 4941 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:38:15,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2624 Valid, 8499 Invalid, 7521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2574 Valid, 4941 Invalid, 6 Unknown, 0 Unchecked, 19.2s Time] [2021-11-17 12:38:15,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27873 states. [2021-11-17 12:38:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27873 to 27102. [2021-11-17 12:38:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27102 states, 17978 states have (on average 1.2180442763377461) internal successors, (21898), 18578 states have internal predecessors, (21898), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2051 states have return successors, (8568), 7073 states have call predecessors, (8568), 7058 states have call successors, (8568) [2021-11-17 12:38:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27102 states to 27102 states and 37530 transitions. [2021-11-17 12:38:16,991 INFO L78 Accepts]: Start accepts. Automaton has 27102 states and 37530 transitions. Word has length 256 [2021-11-17 12:38:16,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:38:16,992 INFO L470 AbstractCegarLoop]: Abstraction has 27102 states and 37530 transitions. [2021-11-17 12:38:16,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (34), 9 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-17 12:38:16,992 INFO L276 IsEmpty]: Start isEmpty. Operand 27102 states and 37530 transitions. [2021-11-17 12:38:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-17 12:38:16,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:38:16,995 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:38:16,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-17 12:38:16,996 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:38:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:38:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1156442837, now seen corresponding path program 1 times [2021-11-17 12:38:16,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:38:16,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817787211] [2021-11-17 12:38:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:38:16,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:38:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:38:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:38:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:38:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:38:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:38:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:38:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:38:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:38:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:38:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:38:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:38:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:38:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:38:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:38:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:38:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:38:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:38:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 12:38:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 12:38:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:38:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:38:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:38:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-17 12:38:17,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:38:17,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817787211] [2021-11-17 12:38:17,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817787211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:38:17,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:38:17,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 12:38:17,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247185649] [2021-11-17 12:38:17,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:38:17,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:38:17,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:38:17,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:38:17,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:38:17,380 INFO L87 Difference]: Start difference. First operand 27102 states and 37530 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 9 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 12:38:19,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:21,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:23,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:26,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:29,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:38:37,099 INFO L93 Difference]: Finished difference Result 44146 states and 62096 transitions. [2021-11-17 12:38:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 12:38:37,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 9 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) Word has length 229 [2021-11-17 12:38:37,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:38:37,200 INFO L225 Difference]: With dead ends: 44146 [2021-11-17 12:38:37,200 INFO L226 Difference]: Without dead ends: 27921 [2021-11-17 12:38:37,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2021-11-17 12:38:37,250 INFO L933 BasicCegarLoop]: 1738 mSDtfsCounter, 2624 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 4950 mSolverCounterSat, 2570 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 8503 SdHoareTripleChecker+Invalid, 7525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2570 IncrementalHoareTripleChecker+Valid, 4950 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-17 12:38:37,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2624 Valid, 8503 Invalid, 7525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2570 Valid, 4950 Invalid, 5 Unknown, 0 Unchecked, 17.9s Time] [2021-11-17 12:38:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27921 states. [2021-11-17 12:38:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27921 to 27150. [2021-11-17 12:38:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27150 states, 18026 states have (on average 1.2174636635970266) internal successors, (21946), 18602 states have internal predecessors, (21946), 7064 states have call successors, (7064), 1878 states have call predecessors, (7064), 2051 states have return successors, (8568), 7097 states have call predecessors, (8568), 7058 states have call successors, (8568) [2021-11-17 12:38:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27150 states to 27150 states and 37578 transitions. [2021-11-17 12:38:38,941 INFO L78 Accepts]: Start accepts. Automaton has 27150 states and 37578 transitions. Word has length 229 [2021-11-17 12:38:38,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:38:38,942 INFO L470 AbstractCegarLoop]: Abstraction has 27150 states and 37578 transitions. [2021-11-17 12:38:38,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 9 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 12:38:38,942 INFO L276 IsEmpty]: Start isEmpty. Operand 27150 states and 37578 transitions. [2021-11-17 12:38:38,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-17 12:38:38,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:38:38,947 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:38:38,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-17 12:38:38,947 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:38:38,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:38:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1388196647, now seen corresponding path program 1 times [2021-11-17 12:38:38,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:38:38,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828133701] [2021-11-17 12:38:38,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:38:38,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:38:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:38:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:38:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:38:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:38:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:38:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:38:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:38:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:38:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:38:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:38:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:38:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:38:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:38:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:38:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 12:38:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:38:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 12:38:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:38:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:38:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 12:38:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 12:38:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 12:38:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:38:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:38:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:38:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:38:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:38:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:38:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:38:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2021-11-17 12:38:40,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:38:40,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828133701] [2021-11-17 12:38:40,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828133701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:38:40,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:38:40,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 12:38:40,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889618599] [2021-11-17 12:38:40,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:38:40,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 12:38:40,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:38:40,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 12:38:40,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-17 12:38:40,148 INFO L87 Difference]: Start difference. First operand 27150 states and 37578 transitions. Second operand has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-17 12:38:42,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:44,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:46,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:48,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:50,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:38:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:38:59,035 INFO L93 Difference]: Finished difference Result 46722 states and 65704 transitions. [2021-11-17 12:38:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 12:38:59,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) Word has length 264 [2021-11-17 12:38:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:38:59,197 INFO L225 Difference]: With dead ends: 46722 [2021-11-17 12:38:59,197 INFO L226 Difference]: Without dead ends: 30449 [2021-11-17 12:38:59,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2021-11-17 12:38:59,265 INFO L933 BasicCegarLoop]: 1761 mSDtfsCounter, 3726 mSDsluCounter, 5052 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 3598 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 7244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3598 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:38:59,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3726 Valid, 6813 Invalid, 7244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3598 Valid, 3641 Invalid, 5 Unknown, 0 Unchecked, 16.8s Time] [2021-11-17 12:38:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30449 states. [2021-11-17 12:39:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30449 to 28894. [2021-11-17 12:39:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28894 states, 19442 states have (on average 1.2263141652093406) internal successors, (23842), 19962 states have internal predecessors, (23842), 7320 states have call successors, (7320), 1910 states have call predecessors, (7320), 2123 states have return successors, (9016), 7449 states have call predecessors, (9016), 7314 states have call successors, (9016) [2021-11-17 12:39:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28894 states to 28894 states and 40178 transitions. [2021-11-17 12:39:01,069 INFO L78 Accepts]: Start accepts. Automaton has 28894 states and 40178 transitions. Word has length 264 [2021-11-17 12:39:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:39:01,070 INFO L470 AbstractCegarLoop]: Abstraction has 28894 states and 40178 transitions. [2021-11-17 12:39:01,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-17 12:39:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 28894 states and 40178 transitions. [2021-11-17 12:39:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-17 12:39:01,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:39:01,076 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 12:39:01,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-17 12:39:01,076 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:39:01,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:39:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash -539242373, now seen corresponding path program 1 times [2021-11-17 12:39:01,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:39:01,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474652152] [2021-11-17 12:39:01,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:39:01,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:39:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:39:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:39:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:39:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:39:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:39:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:39:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:39:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:39:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:39:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:39:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:39:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:39:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:39:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:39:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:39:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:39:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:39:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 12:39:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:39:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:39:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:39:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:39:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:39:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:39:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:39:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-17 12:39:01,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:39:01,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474652152] [2021-11-17 12:39:01,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474652152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:39:01,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:39:01,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 12:39:01,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465034304] [2021-11-17 12:39:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:39:01,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 12:39:01,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:39:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 12:39:01,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-17 12:39:01,938 INFO L87 Difference]: Start difference. First operand 28894 states and 40178 transitions. Second operand has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (35), 9 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-17 12:39:03,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:06,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:08,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:10,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:12,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:39:20,097 INFO L93 Difference]: Finished difference Result 50722 states and 71216 transitions. [2021-11-17 12:39:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 12:39:20,097 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (35), 9 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) Word has length 261 [2021-11-17 12:39:20,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:39:20,221 INFO L225 Difference]: With dead ends: 50722 [2021-11-17 12:39:20,222 INFO L226 Difference]: Without dead ends: 32705 [2021-11-17 12:39:20,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2021-11-17 12:39:20,280 INFO L933 BasicCegarLoop]: 1723 mSDtfsCounter, 3858 mSDsluCounter, 5040 mSDsCounter, 0 mSdLazyCounter, 3601 mSolverCounterSat, 3616 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 7222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3616 IncrementalHoareTripleChecker+Valid, 3601 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:39:20,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3858 Valid, 6763 Invalid, 7222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3616 Valid, 3601 Invalid, 5 Unknown, 0 Unchecked, 16.1s Time] [2021-11-17 12:39:20,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32705 states. [2021-11-17 12:39:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32705 to 30590. [2021-11-17 12:39:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30590 states, 20834 states have (on average 1.2342325045598541) internal successors, (25714), 21274 states have internal predecessors, (25714), 7576 states have call successors, (7576), 1942 states have call predecessors, (7576), 2171 states have return successors, (9176), 7801 states have call predecessors, (9176), 7570 states have call successors, (9176) [2021-11-17 12:39:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30590 states to 30590 states and 42466 transitions. [2021-11-17 12:39:22,416 INFO L78 Accepts]: Start accepts. Automaton has 30590 states and 42466 transitions. Word has length 261 [2021-11-17 12:39:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:39:22,417 INFO L470 AbstractCegarLoop]: Abstraction has 30590 states and 42466 transitions. [2021-11-17 12:39:22,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.461538461538462) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (35), 9 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-17 12:39:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 30590 states and 42466 transitions. [2021-11-17 12:39:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 12:39:22,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:39:22,422 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:39:22,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-17 12:39:22,423 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:39:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:39:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash 411990553, now seen corresponding path program 1 times [2021-11-17 12:39:22,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:39:22,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402073235] [2021-11-17 12:39:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:39:22,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:39:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:39:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:39:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:39:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:39:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:39:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:39:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:39:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:39:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:39:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:39:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:39:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:39:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:39:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:39:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 12:39:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 12:39:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:39:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 12:39:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:22,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 12:39:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:39:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:39:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 12:39:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:39:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-17 12:39:23,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:39:23,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402073235] [2021-11-17 12:39:23,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402073235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:39:23,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:39:23,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 12:39:23,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283226223] [2021-11-17 12:39:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:39:23,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:39:23,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:39:23,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:39:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:39:23,114 INFO L87 Difference]: Start difference. First operand 30590 states and 42466 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 12:39:25,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:27,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:28,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:30,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:32,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:34,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:37,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:39:49,897 INFO L93 Difference]: Finished difference Result 31890 states and 44633 transitions. [2021-11-17 12:39:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-17 12:39:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 234 [2021-11-17 12:39:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:39:50,049 INFO L225 Difference]: With dead ends: 31890 [2021-11-17 12:39:50,049 INFO L226 Difference]: Without dead ends: 31718 [2021-11-17 12:39:50,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=283, Invalid=709, Unknown=0, NotChecked=0, Total=992 [2021-11-17 12:39:50,073 INFO L933 BasicCegarLoop]: 2190 mSDtfsCounter, 3811 mSDsluCounter, 7697 mSDsCounter, 0 mSdLazyCounter, 7063 mSolverCounterSat, 3163 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3908 SdHoareTripleChecker+Valid, 9887 SdHoareTripleChecker+Invalid, 10232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3163 IncrementalHoareTripleChecker+Valid, 7063 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:39:50,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3908 Valid, 9887 Invalid, 10232 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3163 Valid, 7063 Invalid, 6 Unknown, 0 Unchecked, 24.3s Time] [2021-11-17 12:39:50,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2021-11-17 12:39:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 30648. [2021-11-17 12:39:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30648 states, 20882 states have (on average 1.2330236567378603) internal successors, (25748), 21308 states have internal predecessors, (25748), 7558 states have call successors, (7558), 1972 states have call predecessors, (7558), 2199 states have return successors, (9098), 7783 states have call predecessors, (9098), 7546 states have call successors, (9098) [2021-11-17 12:39:51,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 42404 transitions. [2021-11-17 12:39:51,990 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 42404 transitions. Word has length 234 [2021-11-17 12:39:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:39:51,991 INFO L470 AbstractCegarLoop]: Abstraction has 30648 states and 42404 transitions. [2021-11-17 12:39:51,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 12:39:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 42404 transitions. [2021-11-17 12:39:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-17 12:39:51,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:39:51,995 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:39:51,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-17 12:39:51,995 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:39:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:39:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash 441656160, now seen corresponding path program 1 times [2021-11-17 12:39:51,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:39:51,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386041872] [2021-11-17 12:39:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:39:51,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:39:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:39:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:39:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:39:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:39:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:39:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:39:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:39:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:39:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:39:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:39:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:39:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:39:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:39:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:39:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 12:39:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:39:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 12:39:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:39:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 12:39:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:39:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 12:39:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:39:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 12:39:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 12:39:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 12:39:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:39:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:39:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:39:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-17 12:39:52,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:39:52,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386041872] [2021-11-17 12:39:52,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386041872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:39:52,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:39:52,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 12:39:52,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199779793] [2021-11-17 12:39:52,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:39:52,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 12:39:52,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:39:52,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 12:39:52,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:39:52,398 INFO L87 Difference]: Start difference. First operand 30648 states and 42404 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 12:39:54,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:56,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:39:58,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:01,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:40:09,172 INFO L93 Difference]: Finished difference Result 53830 states and 75306 transitions. [2021-11-17 12:40:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 12:40:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 273 [2021-11-17 12:40:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:40:09,293 INFO L225 Difference]: With dead ends: 53830 [2021-11-17 12:40:09,294 INFO L226 Difference]: Without dead ends: 35109 [2021-11-17 12:40:09,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-11-17 12:40:09,347 INFO L933 BasicCegarLoop]: 2028 mSDtfsCounter, 2428 mSDsluCounter, 8096 mSDsCounter, 0 mSdLazyCounter, 4842 mSolverCounterSat, 2131 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2491 SdHoareTripleChecker+Valid, 10124 SdHoareTripleChecker+Invalid, 6977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2131 IncrementalHoareTripleChecker+Valid, 4842 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:40:09,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2491 Valid, 10124 Invalid, 6977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2131 Valid, 4842 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2021-11-17 12:40:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35109 states. [2021-11-17 12:40:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35109 to 28176. [2021-11-17 12:40:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28176 states, 19082 states have (on average 1.2223037417461482) internal successors, (23324), 19516 states have internal predecessors, (23324), 7006 states have call successors, (7006), 1844 states have call predecessors, (7006), 2079 states have return successors, (8378), 7231 states have call predecessors, (8378), 6994 states have call successors, (8378) [2021-11-17 12:40:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28176 states to 28176 states and 38708 transitions. [2021-11-17 12:40:11,402 INFO L78 Accepts]: Start accepts. Automaton has 28176 states and 38708 transitions. Word has length 273 [2021-11-17 12:40:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:40:11,403 INFO L470 AbstractCegarLoop]: Abstraction has 28176 states and 38708 transitions. [2021-11-17 12:40:11,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 12:40:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 28176 states and 38708 transitions. [2021-11-17 12:40:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 12:40:11,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:40:11,406 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:40:11,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-17 12:40:11,407 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:40:11,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:40:11,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2028184452, now seen corresponding path program 1 times [2021-11-17 12:40:11,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:40:11,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213734332] [2021-11-17 12:40:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:11,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:40:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:40:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:40:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:40:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:40:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:40:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:40:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:40:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:40:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:40:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:40:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:40:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 12:40:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 12:40:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 12:40:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:40:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 12:40:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 12:40:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 12:40:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 12:40:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 12:40:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-17 12:40:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:40:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 12:40:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2021-11-17 12:40:11,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:40:11,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213734332] [2021-11-17 12:40:11,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213734332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:40:11,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:40:11,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 12:40:11,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566740424] [2021-11-17 12:40:11,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:40:11,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 12:40:11,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:40:11,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 12:40:11,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:40:11,793 INFO L87 Difference]: Start difference. First operand 28176 states and 38708 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 12:40:14,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:16,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:18,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:40:27,139 INFO L93 Difference]: Finished difference Result 52287 states and 72943 transitions. [2021-11-17 12:40:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 12:40:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 253 [2021-11-17 12:40:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:40:27,251 INFO L225 Difference]: With dead ends: 52287 [2021-11-17 12:40:27,251 INFO L226 Difference]: Without dead ends: 32764 [2021-11-17 12:40:27,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-11-17 12:40:27,306 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2382 mSDsluCounter, 9757 mSDsCounter, 0 mSdLazyCounter, 5436 mSolverCounterSat, 2052 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 11919 SdHoareTripleChecker+Invalid, 7491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2052 IncrementalHoareTripleChecker+Valid, 5436 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:40:27,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 11919 Invalid, 7491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2052 Valid, 5436 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2021-11-17 12:40:27,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32764 states. [2021-11-17 12:40:29,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32764 to 27022. [2021-11-17 12:40:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27022 states, 18425 states have (on average 1.2215468113975576) internal successors, (22507), 18730 states have internal predecessors, (22507), 6510 states have call successors, (6510), 1844 states have call predecessors, (6510), 2078 states have return successors, (7807), 6799 states have call predecessors, (7807), 6496 states have call successors, (7807) [2021-11-17 12:40:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27022 states to 27022 states and 36824 transitions. [2021-11-17 12:40:29,173 INFO L78 Accepts]: Start accepts. Automaton has 27022 states and 36824 transitions. Word has length 253 [2021-11-17 12:40:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:40:29,174 INFO L470 AbstractCegarLoop]: Abstraction has 27022 states and 36824 transitions. [2021-11-17 12:40:29,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 12:40:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 27022 states and 36824 transitions. [2021-11-17 12:40:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-17 12:40:29,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:40:29,178 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:40:29,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-17 12:40:29,178 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:40:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:40:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1923907136, now seen corresponding path program 1 times [2021-11-17 12:40:29,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:40:29,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739234516] [2021-11-17 12:40:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:29,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:40:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:40:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:40:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:40:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:40:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:40:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:40:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:40:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:40:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:40:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:40:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:40:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 12:40:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 12:40:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:40:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:40:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 12:40:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 12:40:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 12:40:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:40:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 12:40:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 12:40:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 12:40:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 6 proven. 61 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-11-17 12:40:29,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:40:29,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739234516] [2021-11-17 12:40:29,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739234516] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:40:29,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031932187] [2021-11-17 12:40:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:29,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:40:29,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:40:29,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:40:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 12:40:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:30,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3357 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-17 12:40:30,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:40:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2021-11-17 12:40:31,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:40:31,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031932187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:40:31,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:40:31,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2021-11-17 12:40:31,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148968447] [2021-11-17 12:40:31,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:40:31,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:40:31,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:40:31,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:40:31,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-17 12:40:31,312 INFO L87 Difference]: Start difference. First operand 27022 states and 36824 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 12:40:33,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:40:33,649 INFO L93 Difference]: Finished difference Result 54528 states and 74414 transitions. [2021-11-17 12:40:33,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:40:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 266 [2021-11-17 12:40:33,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:40:33,757 INFO L225 Difference]: With dead ends: 54528 [2021-11-17 12:40:33,758 INFO L226 Difference]: Without dead ends: 27551 [2021-11-17 12:40:33,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-11-17 12:40:33,838 INFO L933 BasicCegarLoop]: 1960 mSDtfsCounter, 372 mSDsluCounter, 7606 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 9566 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:40:33,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 9566 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 12:40:33,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27551 states. [2021-11-17 12:40:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27551 to 26990. [2021-11-17 12:40:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26990 states, 18408 states have (on average 1.2215884398087788) internal successors, (22487), 18710 states have internal predecessors, (22487), 6498 states have call successors, (6498), 1841 states have call predecessors, (6498), 2075 states have return successors, (7795), 6788 states have call predecessors, (7795), 6484 states have call successors, (7795) [2021-11-17 12:40:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26990 states to 26990 states and 36780 transitions. [2021-11-17 12:40:35,932 INFO L78 Accepts]: Start accepts. Automaton has 26990 states and 36780 transitions. Word has length 266 [2021-11-17 12:40:35,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:40:35,932 INFO L470 AbstractCegarLoop]: Abstraction has 26990 states and 36780 transitions. [2021-11-17 12:40:35,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 12:40:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 26990 states and 36780 transitions. [2021-11-17 12:40:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-17 12:40:35,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:40:35,936 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:40:35,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 12:40:36,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-17 12:40:36,137 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:40:36,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:40:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1687099454, now seen corresponding path program 1 times [2021-11-17 12:40:36,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:40:36,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227701725] [2021-11-17 12:40:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:36,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:40:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:40:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:40:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:40:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:40:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:40:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:40:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:40:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:40:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:40:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:40:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:40:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 12:40:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 12:40:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 12:40:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:40:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 12:40:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 12:40:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 12:40:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:40:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 12:40:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 12:40:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 12:40:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 6 proven. 61 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-11-17 12:40:36,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:40:36,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227701725] [2021-11-17 12:40:36,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227701725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:40:36,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130661335] [2021-11-17 12:40:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:36,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:40:36,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:40:36,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:40:36,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 12:40:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:37,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 3355 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-17 12:40:37,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:40:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-11-17 12:40:38,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:40:38,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130661335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:40:38,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:40:38,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 25 [2021-11-17 12:40:38,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522139713] [2021-11-17 12:40:38,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:40:38,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 12:40:38,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:40:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 12:40:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2021-11-17 12:40:38,283 INFO L87 Difference]: Start difference. First operand 26990 states and 36780 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-17 12:40:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:40:40,814 INFO L93 Difference]: Finished difference Result 40194 states and 54827 transitions. [2021-11-17 12:40:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 12:40:40,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 266 [2021-11-17 12:40:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:40:40,922 INFO L225 Difference]: With dead ends: 40194 [2021-11-17 12:40:40,922 INFO L226 Difference]: Without dead ends: 27582 [2021-11-17 12:40:40,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2021-11-17 12:40:40,978 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 1348 mSDsluCounter, 24931 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 27181 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:40:40,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1348 Valid, 27181 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-17 12:40:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27582 states. [2021-11-17 12:40:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27582 to 27006. [2021-11-17 12:40:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27006 states, 18419 states have (on average 1.221456105108855) internal successors, (22498), 18721 states have internal predecessors, (22498), 6503 states have call successors, (6503), 1841 states have call predecessors, (6503), 2075 states have return successors, (7800), 6793 states have call predecessors, (7800), 6489 states have call successors, (7800) [2021-11-17 12:40:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27006 states to 27006 states and 36801 transitions. [2021-11-17 12:40:43,029 INFO L78 Accepts]: Start accepts. Automaton has 27006 states and 36801 transitions. Word has length 266 [2021-11-17 12:40:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:40:43,029 INFO L470 AbstractCegarLoop]: Abstraction has 27006 states and 36801 transitions. [2021-11-17 12:40:43,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-17 12:40:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 27006 states and 36801 transitions. [2021-11-17 12:40:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-11-17 12:40:43,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:40:43,035 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:40:43,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 12:40:43,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-17 12:40:43,236 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:40:43,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:40:43,236 INFO L85 PathProgramCache]: Analyzing trace with hash -65374905, now seen corresponding path program 1 times [2021-11-17 12:40:43,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:40:43,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700138662] [2021-11-17 12:40:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:40:43,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:40:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:40:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:40:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:40:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 12:40:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 12:40:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 12:40:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:40:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:40:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:40:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:40:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:40:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 12:40:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:40:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 12:40:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:40:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 12:40:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 12:40:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 12:40:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:40:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 12:40:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 12:40:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:40:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 12:40:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 12:40:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 12:40:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 12:40:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 12:40:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 12:40:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:40:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-17 12:40:43,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:40:43,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700138662] [2021-11-17 12:40:43,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700138662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:40:43,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:40:43,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-17 12:40:43,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138361947] [2021-11-17 12:40:43,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:40:43,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-17 12:40:43,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:40:43,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-17 12:40:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-11-17 12:40:43,940 INFO L87 Difference]: Start difference. First operand 27006 states and 36801 transitions. Second operand has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 12:40:45,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:48,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:50,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:52,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:40:54,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:08,297 INFO L93 Difference]: Finished difference Result 55203 states and 75711 transitions. [2021-11-17 12:41:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 12:41:08,297 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 3 states have call successors, (34) Word has length 285 [2021-11-17 12:41:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:08,407 INFO L225 Difference]: With dead ends: 55203 [2021-11-17 12:41:08,407 INFO L226 Difference]: Without dead ends: 28275 [2021-11-17 12:41:08,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2021-11-17 12:41:08,472 INFO L933 BasicCegarLoop]: 2081 mSDtfsCounter, 2632 mSDsluCounter, 17032 mSDsCounter, 0 mSdLazyCounter, 10038 mSolverCounterSat, 2561 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2738 SdHoareTripleChecker+Valid, 19113 SdHoareTripleChecker+Invalid, 12604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2561 IncrementalHoareTripleChecker+Valid, 10038 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:08,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2738 Valid, 19113 Invalid, 12604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2561 Valid, 10038 Invalid, 5 Unknown, 0 Unchecked, 21.5s Time] [2021-11-17 12:41:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28275 states. [2021-11-17 12:41:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28275 to 27017. [2021-11-17 12:41:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27017 states, 18427 states have (on average 1.2213599609269008) internal successors, (22506), 18729 states have internal predecessors, (22506), 6504 states have call successors, (6504), 1841 states have call predecessors, (6504), 2077 states have return successors, (7805), 6796 states have call predecessors, (7805), 6490 states have call successors, (7805) [2021-11-17 12:41:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27017 states to 27017 states and 36815 transitions. [2021-11-17 12:41:10,245 INFO L78 Accepts]: Start accepts. Automaton has 27017 states and 36815 transitions. Word has length 285 [2021-11-17 12:41:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:10,246 INFO L470 AbstractCegarLoop]: Abstraction has 27017 states and 36815 transitions. [2021-11-17 12:41:10,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (36), 9 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 12:41:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 27017 states and 36815 transitions. [2021-11-17 12:41:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-17 12:41:10,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:10,250 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:10,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-17 12:41:10,251 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:10,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1488548193, now seen corresponding path program 1 times [2021-11-17 12:41:10,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:10,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106277217] [2021-11-17 12:41:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:10,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:41:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:41:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:41:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:41:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:41:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:41:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:41:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:41:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:41:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:41:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:41:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:41:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 12:41:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:41:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 12:41:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:41:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 12:41:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:41:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 12:41:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:41:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 12:41:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 12:41:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 12:41:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 12:41:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 12:41:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 12:41:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 12:41:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 12:41:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 12:41:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 12:41:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2021-11-17 12:41:10,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:10,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106277217] [2021-11-17 12:41:10,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106277217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:10,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:41:10,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 12:41:10,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707548756] [2021-11-17 12:41:10,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:10,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 12:41:10,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:10,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 12:41:10,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:41:10,642 INFO L87 Difference]: Start difference. First operand 27017 states and 36815 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-17 12:41:12,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:14,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:17,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:19,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:21,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:41:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:29,732 INFO L93 Difference]: Finished difference Result 43016 states and 59639 transitions. [2021-11-17 12:41:29,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 12:41:29,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 319 [2021-11-17 12:41:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:29,819 INFO L225 Difference]: With dead ends: 43016 [2021-11-17 12:41:29,819 INFO L226 Difference]: Without dead ends: 27839 [2021-11-17 12:41:29,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2021-11-17 12:41:29,857 INFO L933 BasicCegarLoop]: 2284 mSDtfsCounter, 2429 mSDsluCounter, 10200 mSDsCounter, 0 mSdLazyCounter, 5681 mSolverCounterSat, 2146 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 12484 SdHoareTripleChecker+Invalid, 7832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2146 IncrementalHoareTripleChecker+Valid, 5681 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:29,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2557 Valid, 12484 Invalid, 7832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2146 Valid, 5681 Invalid, 5 Unknown, 0 Unchecked, 17.0s Time] [2021-11-17 12:41:29,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27839 states. [2021-11-17 12:41:31,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27839 to 22660. [2021-11-17 12:41:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22660 states, 15621 states have (on average 1.227450227258178) internal successors, (19174), 15738 states have internal predecessors, (19174), 5332 states have call successors, (5332), 1500 states have call predecessors, (5332), 1699 states have return successors, (6414), 5695 states have call predecessors, (6414), 5326 states have call successors, (6414) [2021-11-17 12:41:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22660 states to 22660 states and 30920 transitions. [2021-11-17 12:41:31,345 INFO L78 Accepts]: Start accepts. Automaton has 22660 states and 30920 transitions. Word has length 319 [2021-11-17 12:41:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:31,346 INFO L470 AbstractCegarLoop]: Abstraction has 22660 states and 30920 transitions. [2021-11-17 12:41:31,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-17 12:41:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 22660 states and 30920 transitions. [2021-11-17 12:41:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-11-17 12:41:31,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:31,351 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:31,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-17 12:41:31,351 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:31,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1168663998, now seen corresponding path program 1 times [2021-11-17 12:41:31,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:31,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84849544] [2021-11-17 12:41:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:31,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:31,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:41:31,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846332905] [2021-11-17 12:41:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:31,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:31,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:31,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:31,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 12:41:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:32,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 3550 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-17 12:41:32,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:41:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-17 12:41:33,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:41:33,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:33,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84849544] [2021-11-17 12:41:33,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:41:33,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846332905] [2021-11-17 12:41:33,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846332905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:33,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:41:33,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-17 12:41:33,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765001791] [2021-11-17 12:41:33,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:33,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-17 12:41:33,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:33,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-17 12:41:33,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-11-17 12:41:33,056 INFO L87 Difference]: Start difference. First operand 22660 states and 30920 transitions. Second operand has 16 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-17 12:41:35,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:35,305 INFO L93 Difference]: Finished difference Result 45366 states and 61929 transitions. [2021-11-17 12:41:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 12:41:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 306 [2021-11-17 12:41:35,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:35,394 INFO L225 Difference]: With dead ends: 45366 [2021-11-17 12:41:35,394 INFO L226 Difference]: Without dead ends: 22844 [2021-11-17 12:41:35,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-11-17 12:41:35,458 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 556 mSDsluCounter, 26821 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 28799 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:35,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 28799 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-17 12:41:35,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22844 states. [2021-11-17 12:41:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22844 to 22680. [2021-11-17 12:41:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22680 states, 15635 states have (on average 1.2272465622001918) internal successors, (19188), 15752 states have internal predecessors, (19188), 5338 states have call successors, (5338), 1500 states have call predecessors, (5338), 1699 states have return successors, (6420), 5701 states have call predecessors, (6420), 5332 states have call successors, (6420) [2021-11-17 12:41:37,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22680 states to 22680 states and 30946 transitions. [2021-11-17 12:41:37,059 INFO L78 Accepts]: Start accepts. Automaton has 22680 states and 30946 transitions. Word has length 306 [2021-11-17 12:41:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:37,060 INFO L470 AbstractCegarLoop]: Abstraction has 22680 states and 30946 transitions. [2021-11-17 12:41:37,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-17 12:41:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 22680 states and 30946 transitions. [2021-11-17 12:41:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-17 12:41:37,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:37,063 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:37,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 12:41:37,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:37,269 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -240228679, now seen corresponding path program 1 times [2021-11-17 12:41:37,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:37,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331622625] [2021-11-17 12:41:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:37,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:41:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 12:41:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:41:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 12:41:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 12:41:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 12:41:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:41:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 12:41:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:41:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:41:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 12:41:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:41:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 12:41:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 12:41:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 12:41:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:41:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 12:41:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 12:41:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:41:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 12:41:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 12:41:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 12:41:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 12:41:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:41:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 12:41:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:41:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:41:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:41:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 12:41:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 12:41:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:41:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:41:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 12:41:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:41:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 12:41:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-17 12:41:37,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:37,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331622625] [2021-11-17 12:41:37,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331622625] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:41:37,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318323028] [2021-11-17 12:41:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:37,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:37,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:37,836 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:37,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 12:41:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:38,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 3929 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 12:41:38,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:41:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2021-11-17 12:41:39,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:41:39,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318323028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:39,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:41:39,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-11-17 12:41:39,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753843201] [2021-11-17 12:41:39,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:39,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:41:39,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:39,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:41:39,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-11-17 12:41:39,203 INFO L87 Difference]: Start difference. First operand 22680 states and 30946 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 12:41:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:41,330 INFO L93 Difference]: Finished difference Result 42870 states and 59890 transitions. [2021-11-17 12:41:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:41:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 329 [2021-11-17 12:41:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:41,438 INFO L225 Difference]: With dead ends: 42870 [2021-11-17 12:41:41,438 INFO L226 Difference]: Without dead ends: 28501 [2021-11-17 12:41:41,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-17 12:41:41,483 INFO L933 BasicCegarLoop]: 2374 mSDtfsCounter, 541 mSDsluCounter, 8991 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 11365 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:41,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 11365 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 12:41:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28501 states. [2021-11-17 12:41:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28501 to 21921. [2021-11-17 12:41:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21921 states, 15177 states have (on average 1.2281742109771365) internal successors, (18640), 15271 states have internal predecessors, (18640), 5078 states have call successors, (5078), 1449 states have call predecessors, (5078), 1659 states have return successors, (6109), 5468 states have call predecessors, (6109), 5072 states have call successors, (6109) [2021-11-17 12:41:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21921 states to 21921 states and 29827 transitions. [2021-11-17 12:41:42,982 INFO L78 Accepts]: Start accepts. Automaton has 21921 states and 29827 transitions. Word has length 329 [2021-11-17 12:41:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:42,983 INFO L470 AbstractCegarLoop]: Abstraction has 21921 states and 29827 transitions. [2021-11-17 12:41:42,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 12:41:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 21921 states and 29827 transitions. [2021-11-17 12:41:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-17 12:41:42,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:42,985 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:43,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 12:41:43,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-17 12:41:43,186 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:43,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash 613170154, now seen corresponding path program 1 times [2021-11-17 12:41:43,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:43,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761276055] [2021-11-17 12:41:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:43,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:43,226 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:41:43,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561929873] [2021-11-17 12:41:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:43,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:43,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:43,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:43,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 12:41:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:44,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 3874 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 12:41:44,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:41:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-11-17 12:41:44,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:41:44,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:44,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761276055] [2021-11-17 12:41:44,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:41:44,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561929873] [2021-11-17 12:41:44,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561929873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:44,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:41:44,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 12:41:44,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757606801] [2021-11-17 12:41:44,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:44,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 12:41:44,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 12:41:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 12:41:44,723 INFO L87 Difference]: Start difference. First operand 21921 states and 29827 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:47,001 INFO L93 Difference]: Finished difference Result 34853 states and 48322 transitions. [2021-11-17 12:41:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 12:41:47,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 374 [2021-11-17 12:41:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:47,113 INFO L225 Difference]: With dead ends: 34853 [2021-11-17 12:41:47,113 INFO L226 Difference]: Without dead ends: 26804 [2021-11-17 12:41:47,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:41:47,147 INFO L933 BasicCegarLoop]: 2450 mSDtfsCounter, 873 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 5567 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:47,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 5567 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-17 12:41:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26804 states. [2021-11-17 12:41:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26804 to 21921. [2021-11-17 12:41:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21921 states, 15177 states have (on average 1.2281083218027278) internal successors, (18639), 15271 states have internal predecessors, (18639), 5078 states have call successors, (5078), 1449 states have call predecessors, (5078), 1659 states have return successors, (6109), 5468 states have call predecessors, (6109), 5072 states have call successors, (6109) [2021-11-17 12:41:48,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21921 states to 21921 states and 29826 transitions. [2021-11-17 12:41:48,818 INFO L78 Accepts]: Start accepts. Automaton has 21921 states and 29826 transitions. Word has length 374 [2021-11-17 12:41:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:48,819 INFO L470 AbstractCegarLoop]: Abstraction has 21921 states and 29826 transitions. [2021-11-17 12:41:48,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 21921 states and 29826 transitions. [2021-11-17 12:41:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-11-17 12:41:48,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:48,821 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:48,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 12:41:49,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:49,022 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:49,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash 218076911, now seen corresponding path program 1 times [2021-11-17 12:41:49,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:49,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219140843] [2021-11-17 12:41:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:49,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:49,066 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:41:49,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287421117] [2021-11-17 12:41:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:49,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:49,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:49,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:49,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 12:41:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:49,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 3910 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 12:41:49,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:41:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-17 12:41:50,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:41:50,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:50,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219140843] [2021-11-17 12:41:50,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:41:50,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287421117] [2021-11-17 12:41:50,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287421117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:50,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:41:50,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:41:50,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866447432] [2021-11-17 12:41:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:50,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:41:50,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:50,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:41:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:41:50,468 INFO L87 Difference]: Start difference. First operand 21921 states and 29826 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:52,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:52,140 INFO L93 Difference]: Finished difference Result 43769 states and 59549 transitions. [2021-11-17 12:41:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 12:41:52,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 376 [2021-11-17 12:41:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:52,228 INFO L225 Difference]: With dead ends: 43769 [2021-11-17 12:41:52,228 INFO L226 Difference]: Without dead ends: 21921 [2021-11-17 12:41:52,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:41:52,292 INFO L933 BasicCegarLoop]: 1868 mSDtfsCounter, 3 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7466 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:52,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7466 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 12:41:52,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21921 states. [2021-11-17 12:41:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21921 to 21921. [2021-11-17 12:41:54,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21921 states, 15177 states have (on average 1.2279765434539105) internal successors, (18637), 15271 states have internal predecessors, (18637), 5078 states have call successors, (5078), 1449 states have call predecessors, (5078), 1659 states have return successors, (6109), 5468 states have call predecessors, (6109), 5072 states have call successors, (6109) [2021-11-17 12:41:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21921 states to 21921 states and 29824 transitions. [2021-11-17 12:41:54,085 INFO L78 Accepts]: Start accepts. Automaton has 21921 states and 29824 transitions. Word has length 376 [2021-11-17 12:41:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:54,086 INFO L470 AbstractCegarLoop]: Abstraction has 21921 states and 29824 transitions. [2021-11-17 12:41:54,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 21921 states and 29824 transitions. [2021-11-17 12:41:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-17 12:41:54,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:54,088 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:54,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-17 12:41:54,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:54,299 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:54,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash 642414760, now seen corresponding path program 1 times [2021-11-17 12:41:54,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:54,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834573226] [2021-11-17 12:41:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:54,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:54,341 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:41:54,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699162579] [2021-11-17 12:41:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:54,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:54,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:54,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:54,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 12:41:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:41:55,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 3924 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 12:41:55,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:41:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2021-11-17 12:41:55,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:41:55,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:41:55,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834573226] [2021-11-17 12:41:55,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:41:55,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699162579] [2021-11-17 12:41:55,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699162579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:41:55,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:41:55,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:41:55,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308080293] [2021-11-17 12:41:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:41:55,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:41:55,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:41:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:41:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:41:55,918 INFO L87 Difference]: Start difference. First operand 21921 states and 29824 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:41:57,517 INFO L93 Difference]: Finished difference Result 43755 states and 59530 transitions. [2021-11-17 12:41:57,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 12:41:57,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 378 [2021-11-17 12:41:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:41:57,602 INFO L225 Difference]: With dead ends: 43755 [2021-11-17 12:41:57,602 INFO L226 Difference]: Without dead ends: 21921 [2021-11-17 12:41:57,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:41:57,663 INFO L933 BasicCegarLoop]: 1866 mSDtfsCounter, 3 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7458 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:41:57,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7458 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 12:41:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21921 states. [2021-11-17 12:41:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21921 to 21921. [2021-11-17 12:41:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21921 states, 15177 states have (on average 1.2278447651050932) internal successors, (18635), 15271 states have internal predecessors, (18635), 5078 states have call successors, (5078), 1449 states have call predecessors, (5078), 1659 states have return successors, (6109), 5468 states have call predecessors, (6109), 5072 states have call successors, (6109) [2021-11-17 12:41:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21921 states to 21921 states and 29822 transitions. [2021-11-17 12:41:59,187 INFO L78 Accepts]: Start accepts. Automaton has 21921 states and 29822 transitions. Word has length 378 [2021-11-17 12:41:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:41:59,188 INFO L470 AbstractCegarLoop]: Abstraction has 21921 states and 29822 transitions. [2021-11-17 12:41:59,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 12:41:59,188 INFO L276 IsEmpty]: Start isEmpty. Operand 21921 states and 29822 transitions. [2021-11-17 12:41:59,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-17 12:41:59,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:41:59,190 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:41:59,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 12:41:59,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-17 12:41:59,392 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_fs_sysfs_sysfs_remove_groupErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:41:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:41:59,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1820406097, now seen corresponding path program 1 times [2021-11-17 12:41:59,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:41:59,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936447558] [2021-11-17 12:41:59,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:59,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:41:59,435 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:41:59,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688559440] [2021-11-17 12:41:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:41:59,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:41:59,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:41:59,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:41:59,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 12:42:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:42:00,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 3938 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-17 12:42:00,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:42:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-11-17 12:42:01,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:42:01,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:42:01,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936447558] [2021-11-17 12:42:01,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:42:01,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688559440] [2021-11-17 12:42:01,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688559440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:42:01,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:42:01,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-17 12:42:01,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277481660] [2021-11-17 12:42:01,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:42:01,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-17 12:42:01,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:42:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-17 12:42:01,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-11-17 12:42:01,153 INFO L87 Difference]: Start difference. First operand 21921 states and 29822 transitions. Second operand has 15 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) [2021-11-17 12:42:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:42:04,441 INFO L93 Difference]: Finished difference Result 45976 states and 64049 transitions. [2021-11-17 12:42:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 12:42:04,442 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) Word has length 380 [2021-11-17 12:42:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:42:04,565 INFO L225 Difference]: With dead ends: 45976 [2021-11-17 12:42:04,565 INFO L226 Difference]: Without dead ends: 30411 [2021-11-17 12:42:04,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2021-11-17 12:42:04,612 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2068 mSDsluCounter, 26265 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 1169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 28377 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-17 12:42:04,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2210 Valid, 28377 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1169 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-17 12:42:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30411 states. [2021-11-17 12:42:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30411 to 22090. [2021-11-17 12:42:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22090 states, 15293 states have (on average 1.2259857451121428) internal successors, (18749), 15387 states have internal predecessors, (18749), 5132 states have call successors, (5132), 1449 states have call predecessors, (5132), 1658 states have return successors, (6161), 5520 states have call predecessors, (6161), 5126 states have call successors, (6161) [2021-11-17 12:42:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22090 states to 22090 states and 30042 transitions. [2021-11-17 12:42:06,544 INFO L78 Accepts]: Start accepts. Automaton has 22090 states and 30042 transitions. Word has length 380 [2021-11-17 12:42:06,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:42:06,545 INFO L470 AbstractCegarLoop]: Abstraction has 22090 states and 30042 transitions. [2021-11-17 12:42:06,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) [2021-11-17 12:42:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22090 states and 30042 transitions. [2021-11-17 12:42:06,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-17 12:42:06,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:42:06,547 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:42:06,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-17 12:42:06,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-17 12:42:06,749 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-17 12:42:06,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:42:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1326815834, now seen corresponding path program 1 times [2021-11-17 12:42:06,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:42:06,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636068880] [2021-11-17 12:42:06,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:42:06,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:42:06,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 12:42:06,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19711747] [2021-11-17 12:42:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:42:06,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:42:06,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:42:06,798 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:42:06,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 12:42:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:42:07,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 4061 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 12:42:07,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:42:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2021-11-17 12:42:08,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:42:08,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:42:08,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636068880] [2021-11-17 12:42:08,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 12:42:08,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19711747] [2021-11-17 12:42:08,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19711747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:42:08,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:42:08,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 12:42:08,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030747549] [2021-11-17 12:42:08,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:42:08,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 12:42:08,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:42:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 12:42:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 12:42:08,249 INFO L87 Difference]: Start difference. First operand 22090 states and 30042 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-17 12:42:10,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:42:10,160 INFO L93 Difference]: Finished difference Result 40032 states and 54646 transitions. [2021-11-17 12:42:10,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 12:42:10,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 409 [2021-11-17 12:42:10,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:42:10,246 INFO L225 Difference]: With dead ends: 40032 [2021-11-17 12:42:10,246 INFO L226 Difference]: Without dead ends: 22695 [2021-11-17 12:42:10,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:42:10,297 INFO L933 BasicCegarLoop]: 2367 mSDtfsCounter, 477 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 6346 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 12:42:10,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 6346 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 12:42:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states.