./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--md--raid456.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.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 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 15:37:53,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 15:37:53,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 15:37:53,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 15:37:53,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 15:37:53,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 15:37:53,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 15:37:53,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 15:37:53,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 15:37:53,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 15:37:53,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 15:37:53,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 15:37:53,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 15:37:53,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 15:37:53,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 15:37:53,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 15:37:53,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 15:37:53,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 15:37:53,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 15:37:53,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 15:37:53,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 15:37:53,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 15:37:53,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 15:37:53,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 15:37:53,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 15:37:53,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 15:37:53,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 15:37:53,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 15:37:53,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 15:37:53,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 15:37:53,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 15:37:53,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 15:37:53,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 15:37:53,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 15:37:53,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 15:37:53,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 15:37:53,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 15:37:53,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 15:37:53,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 15:37:53,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 15:37:53,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 15:37:53,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 15:37:53,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 15:37:53,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 15:37:53,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 15:37:53,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 15:37:53,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 15:37:53,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 15:37:53,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 15:37:53,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 15:37:53,820 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 15:37:53,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 15:37:53,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 15:37:53,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 15:37:53,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 15:37:53,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 15:37:53,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 15:37:53,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:37:53,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 15:37:53,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 15:37:53,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 15:37:53,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 15:37:53,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f [2021-12-18 15:37:54,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 15:37:54,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 15:37:54,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 15:37:54,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 15:37:54,077 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 15:37:54,078 INFO L432 ainManager$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--md--raid456.ko.cil.i [2021-12-18 15:37:54,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea0d2fadc/dbc84c9771fb4a48a18305d85f947f9b/FLAG79eed05d5 [2021-12-18 15:37:54,890 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 15:37:54,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-12-18 15:37:54,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea0d2fadc/dbc84c9771fb4a48a18305d85f947f9b/FLAG79eed05d5 [2021-12-18 15:37:55,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea0d2fadc/dbc84c9771fb4a48a18305d85f947f9b [2021-12-18 15:37:55,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 15:37:55,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 15:37:55,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 15:37:55,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 15:37:55,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 15:37:55,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:37:55" (1/1) ... [2021-12-18 15:37:55,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559b60c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:37:55, skipping insertion in model container [2021-12-18 15:37:55,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:37:55" (1/1) ... [2021-12-18 15:37:55,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 15:37:55,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 15:38:02,793 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--md--raid456.ko.cil.i[773190,773203] [2021-12-18 15:38:02,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773335,773348] [2021-12-18 15:38:02,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773481,773494] [2021-12-18 15:38:02,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773646,773659] [2021-12-18 15:38:02,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773804,773817] [2021-12-18 15:38:02,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773962,773975] [2021-12-18 15:38:02,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774120,774133] [2021-12-18 15:38:02,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774280,774293] [2021-12-18 15:38:02,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774439,774452] [2021-12-18 15:38:02,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774578,774591] [2021-12-18 15:38:02,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774720,774733] [2021-12-18 15:38:02,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774869,774882] [2021-12-18 15:38:02,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775008,775021] [2021-12-18 15:38:02,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775163,775176] [2021-12-18 15:38:02,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775323,775336] [2021-12-18 15:38:02,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775474,775487] [2021-12-18 15:38:02,801 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--md--raid456.ko.cil.i[775625,775638] [2021-12-18 15:38:02,801 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--md--raid456.ko.cil.i[775777,775790] [2021-12-18 15:38:02,801 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--md--raid456.ko.cil.i[775926,775939] [2021-12-18 15:38:02,802 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--md--raid456.ko.cil.i[776074,776087] [2021-12-18 15:38:02,802 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--md--raid456.ko.cil.i[776231,776244] [2021-12-18 15:38:02,802 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--md--raid456.ko.cil.i[776380,776393] [2021-12-18 15:38:02,802 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--md--raid456.ko.cil.i[776536,776549] [2021-12-18 15:38:02,803 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--md--raid456.ko.cil.i[776689,776702] [2021-12-18 15:38:02,803 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--md--raid456.ko.cil.i[776835,776848] [2021-12-18 15:38:02,803 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--md--raid456.ko.cil.i[776978,776991] [2021-12-18 15:38:02,804 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--md--raid456.ko.cil.i[777130,777143] [2021-12-18 15:38:02,804 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--md--raid456.ko.cil.i[777276,777289] [2021-12-18 15:38:02,804 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--md--raid456.ko.cil.i[777421,777434] [2021-12-18 15:38:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777575,777588] [2021-12-18 15:38:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777726,777739] [2021-12-18 15:38:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777881,777894] [2021-12-18 15:38:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778033,778046] [2021-12-18 15:38:02,806 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--md--raid456.ko.cil.i[778188,778201] [2021-12-18 15:38:02,806 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--md--raid456.ko.cil.i[778352,778365] [2021-12-18 15:38:02,806 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--md--raid456.ko.cil.i[778508,778521] [2021-12-18 15:38:02,807 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--md--raid456.ko.cil.i[778672,778685] [2021-12-18 15:38:02,807 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--md--raid456.ko.cil.i[778814,778827] [2021-12-18 15:38:02,807 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--md--raid456.ko.cil.i[778972,778985] [2021-12-18 15:38:02,807 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--md--raid456.ko.cil.i[779139,779152] [2021-12-18 15:38:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779298,779311] [2021-12-18 15:38:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779457,779470] [2021-12-18 15:38:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779606,779619] [2021-12-18 15:38:02,809 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--md--raid456.ko.cil.i[779753,779766] [2021-12-18 15:38:02,809 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--md--raid456.ko.cil.i[779892,779905] [2021-12-18 15:38:02,809 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--md--raid456.ko.cil.i[780055,780068] [2021-12-18 15:38:02,809 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--md--raid456.ko.cil.i[780221,780234] [2021-12-18 15:38:02,810 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--md--raid456.ko.cil.i[780385,780398] [2021-12-18 15:38:02,810 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--md--raid456.ko.cil.i[780550,780563] [2021-12-18 15:38:02,810 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--md--raid456.ko.cil.i[780715,780728] [2021-12-18 15:38:02,811 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--md--raid456.ko.cil.i[780881,780894] [2021-12-18 15:38:02,811 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--md--raid456.ko.cil.i[781046,781059] [2021-12-18 15:38:02,811 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--md--raid456.ko.cil.i[781213,781226] [2021-12-18 15:38:02,811 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--md--raid456.ko.cil.i[781373,781386] [2021-12-18 15:38:02,812 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--md--raid456.ko.cil.i[781535,781548] [2021-12-18 15:38:02,812 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--md--raid456.ko.cil.i[781694,781707] [2021-12-18 15:38:02,812 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--md--raid456.ko.cil.i[781840,781853] [2021-12-18 15:38:02,812 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--md--raid456.ko.cil.i[781983,781996] [2021-12-18 15:38:02,813 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--md--raid456.ko.cil.i[782127,782140] [2021-12-18 15:38:02,813 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--md--raid456.ko.cil.i[782270,782283] [2021-12-18 15:38:02,813 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--md--raid456.ko.cil.i[782414,782427] [2021-12-18 15:38:02,814 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--md--raid456.ko.cil.i[782555,782568] [2021-12-18 15:38:02,814 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--md--raid456.ko.cil.i[782693,782706] [2021-12-18 15:38:02,814 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--md--raid456.ko.cil.i[782851,782864] [2021-12-18 15:38:02,814 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--md--raid456.ko.cil.i[783010,783023] [2021-12-18 15:38:02,815 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--md--raid456.ko.cil.i[783166,783179] [2021-12-18 15:38:02,815 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--md--raid456.ko.cil.i[783315,783328] [2021-12-18 15:38:02,815 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--md--raid456.ko.cil.i[783467,783480] [2021-12-18 15:38:02,815 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--md--raid456.ko.cil.i[783618,783631] [2021-12-18 15:38:02,816 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--md--raid456.ko.cil.i[783767,783780] [2021-12-18 15:38:02,816 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--md--raid456.ko.cil.i[783919,783932] [2021-12-18 15:38:02,816 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--md--raid456.ko.cil.i[784067,784080] [2021-12-18 15:38:02,817 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--md--raid456.ko.cil.i[784220,784233] [2021-12-18 15:38:02,817 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--md--raid456.ko.cil.i[784371,784384] [2021-12-18 15:38:02,817 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--md--raid456.ko.cil.i[784521,784534] [2021-12-18 15:38:02,817 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--md--raid456.ko.cil.i[784668,784681] [2021-12-18 15:38:02,818 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--md--raid456.ko.cil.i[784819,784832] [2021-12-18 15:38:02,818 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--md--raid456.ko.cil.i[784970,784983] [2021-12-18 15:38:02,818 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--md--raid456.ko.cil.i[785118,785131] [2021-12-18 15:38:02,819 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--md--raid456.ko.cil.i[785284,785297] [2021-12-18 15:38:02,819 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--md--raid456.ko.cil.i[785453,785466] [2021-12-18 15:38:02,819 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--md--raid456.ko.cil.i[785620,785633] [2021-12-18 15:38:02,819 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--md--raid456.ko.cil.i[785788,785801] [2021-12-18 15:38:02,820 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--md--raid456.ko.cil.i[785938,785951] [2021-12-18 15:38:02,820 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--md--raid456.ko.cil.i[786085,786098] [2021-12-18 15:38:02,820 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--md--raid456.ko.cil.i[786246,786259] [2021-12-18 15:38:02,820 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--md--raid456.ko.cil.i[786416,786429] [2021-12-18 15:38:02,821 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--md--raid456.ko.cil.i[786578,786591] [2021-12-18 15:38:02,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:38:02,853 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 15:38:03,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773190,773203] [2021-12-18 15:38:03,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773335,773348] [2021-12-18 15:38:03,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773481,773494] [2021-12-18 15:38:03,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773646,773659] [2021-12-18 15:38:03,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773804,773817] [2021-12-18 15:38:03,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[773962,773975] [2021-12-18 15:38:03,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774120,774133] [2021-12-18 15:38:03,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774280,774293] [2021-12-18 15:38:03,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774439,774452] [2021-12-18 15:38:03,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774578,774591] [2021-12-18 15:38:03,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774720,774733] [2021-12-18 15:38:03,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[774869,774882] [2021-12-18 15:38:03,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775008,775021] [2021-12-18 15:38:03,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775163,775176] [2021-12-18 15:38:03,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775323,775336] [2021-12-18 15:38:03,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775474,775487] [2021-12-18 15:38:03,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775625,775638] [2021-12-18 15:38:03,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775777,775790] [2021-12-18 15:38:03,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[775926,775939] [2021-12-18 15:38:03,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776074,776087] [2021-12-18 15:38:03,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776231,776244] [2021-12-18 15:38:03,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776380,776393] [2021-12-18 15:38:03,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776536,776549] [2021-12-18 15:38:03,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776689,776702] [2021-12-18 15:38:03,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776835,776848] [2021-12-18 15:38:03,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[776978,776991] [2021-12-18 15:38:03,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777130,777143] [2021-12-18 15:38:03,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777276,777289] [2021-12-18 15:38:03,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777421,777434] [2021-12-18 15:38:03,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777575,777588] [2021-12-18 15:38:03,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777726,777739] [2021-12-18 15:38:03,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[777881,777894] [2021-12-18 15:38:03,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778033,778046] [2021-12-18 15:38:03,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778188,778201] [2021-12-18 15:38:03,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778352,778365] [2021-12-18 15:38:03,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778508,778521] [2021-12-18 15:38:03,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778672,778685] [2021-12-18 15:38:03,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778814,778827] [2021-12-18 15:38:03,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[778972,778985] [2021-12-18 15:38:03,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779139,779152] [2021-12-18 15:38:03,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779298,779311] [2021-12-18 15:38:03,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779457,779470] [2021-12-18 15:38:03,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779606,779619] [2021-12-18 15:38:03,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779753,779766] [2021-12-18 15:38:03,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[779892,779905] [2021-12-18 15:38:03,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780055,780068] [2021-12-18 15:38:03,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780221,780234] [2021-12-18 15:38:03,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780385,780398] [2021-12-18 15:38:03,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780550,780563] [2021-12-18 15:38:03,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780715,780728] [2021-12-18 15:38:03,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[780881,780894] [2021-12-18 15:38:03,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781046,781059] [2021-12-18 15:38:03,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781213,781226] [2021-12-18 15:38:03,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781373,781386] [2021-12-18 15:38:03,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781535,781548] [2021-12-18 15:38:03,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781694,781707] [2021-12-18 15:38:03,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781840,781853] [2021-12-18 15:38:03,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[781983,781996] [2021-12-18 15:38:03,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782127,782140] [2021-12-18 15:38:03,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782270,782283] [2021-12-18 15:38:03,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782414,782427] [2021-12-18 15:38:03,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782555,782568] [2021-12-18 15:38:03,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782693,782706] [2021-12-18 15:38:03,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[782851,782864] [2021-12-18 15:38:03,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783010,783023] [2021-12-18 15:38:03,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783166,783179] [2021-12-18 15:38:03,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783315,783328] [2021-12-18 15:38:03,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783467,783480] [2021-12-18 15:38:03,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783618,783631] [2021-12-18 15:38:03,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783767,783780] [2021-12-18 15:38:03,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[783919,783932] [2021-12-18 15:38:03,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784067,784080] [2021-12-18 15:38:03,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784220,784233] [2021-12-18 15:38:03,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784371,784384] [2021-12-18 15:38:03,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784521,784534] [2021-12-18 15:38:03,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784668,784681] [2021-12-18 15:38:03,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784819,784832] [2021-12-18 15:38:03,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[784970,784983] [2021-12-18 15:38:03,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785118,785131] [2021-12-18 15:38:03,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785284,785297] [2021-12-18 15:38:03,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785453,785466] [2021-12-18 15:38:03,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785620,785633] [2021-12-18 15:38:03,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785788,785801] [2021-12-18 15:38:03,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[785938,785951] [2021-12-18 15:38:03,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[786085,786098] [2021-12-18 15:38:03,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[786246,786259] [2021-12-18 15:38:03,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[786416,786429] [2021-12-18 15:38:03,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override 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--md--raid456.ko.cil.i[786578,786591] [2021-12-18 15:38:03,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:38:03,812 INFO L208 MainTranslator]: Completed translation [2021-12-18 15:38:03,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03 WrapperNode [2021-12-18 15:38:03,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 15:38:03,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 15:38:03,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 15:38:03,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 15:38:03,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,300 INFO L137 Inliner]: procedures = 931, calls = 6987, calls flagged for inlining = 417, calls inlined = 280, statements flattened = 10912 [2021-12-18 15:38:04,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 15:38:04,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 15:38:04,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 15:38:04,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 15:38:04,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 15:38:04,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 15:38:04,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 15:38:04,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 15:38:04,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (1/1) ... [2021-12-18 15:38:04,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:38:04,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:38:04,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 15:38:04,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 15:38:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-12-18 15:38:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-12-18 15:38:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2021-12-18 15:38:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2021-12-18 15:38:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-18 15:38:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-18 15:38:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-12-18 15:38:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-12-18 15:38:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2021-12-18 15:38:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2021-12-18 15:38:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2021-12-18 15:38:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2021-12-18 15:38:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-18 15:38:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-18 15:38:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2021-12-18 15:38:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2021-12-18 15:38:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 15:38:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 15:38:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 15:38:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 15:38:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 15:38:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 15:38:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-12-18 15:38:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-12-18 15:38:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-18 15:38:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-18 15:38:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-12-18 15:38:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-12-18 15:38:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 15:38:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 15:38:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2021-12-18 15:38:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2021-12-18 15:38:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-18 15:38:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-18 15:38:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 15:38:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 15:38:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2021-12-18 15:38:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2021-12-18 15:38:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2021-12-18 15:38:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2021-12-18 15:38:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2021-12-18 15:38:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2021-12-18 15:38:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 15:38:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 15:38:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-18 15:38:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-18 15:38:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 15:38:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 15:38:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2021-12-18 15:38:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2021-12-18 15:38:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 15:38:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 15:38:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2021-12-18 15:38:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2021-12-18 15:38:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 15:38:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 15:38:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 15:38:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 15:38:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 15:38:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2021-12-18 15:38:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2021-12-18 15:38:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2021-12-18 15:38:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2021-12-18 15:38:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_122 [2021-12-18 15:38:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_122 [2021-12-18 15:38:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 15:38:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 15:38:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-18 15:38:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-18 15:38:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2021-12-18 15:38:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2021-12-18 15:38:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-12-18 15:38:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-12-18 15:38:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_137 [2021-12-18 15:38:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_137 [2021-12-18 15:38:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 15:38:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 15:38:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-18 15:38:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-18 15:38:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 15:38:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2021-12-18 15:38:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2021-12-18 15:38:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 15:38:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2021-12-18 15:38:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 15:38:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2021-12-18 15:38:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2021-12-18 15:38:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 15:38:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-12-18 15:38:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2021-12-18 15:38:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-12-18 15:38:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_md_register_thread [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_md_register_thread [2021-12-18 15:38:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_zalloc [2021-12-18 15:38:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_zalloc [2021-12-18 15:38:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2021-12-18 15:38:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2021-12-18 15:38:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_176 [2021-12-18 15:38:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_176 [2021-12-18 15:38:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 15:38:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 15:38:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 15:38:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 15:38:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2021-12-18 15:38:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2021-12-18 15:38:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-12-18 15:38:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-12-18 15:38:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2021-12-18 15:38:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2021-12-18 15:38:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2021-12-18 15:38:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2021-12-18 15:38:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 15:38:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 15:38:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_103 [2021-12-18 15:38:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_103 [2021-12-18 15:38:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 15:38:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 15:38:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 15:38:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 15:38:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-18 15:38:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-18 15:38:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2021-12-18 15:38:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2021-12-18 15:38:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 15:38:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 15:38:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2021-12-18 15:38:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2021-12-18 15:38:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 15:38:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2021-12-18 15:38:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 15:38:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-18 15:38:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2021-12-18 15:38:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-18 15:38:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 15:38:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 15:38:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2021-12-18 15:38:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2021-12-18 15:38:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-12-18 15:38:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-12-18 15:38:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2021-12-18 15:38:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2021-12-18 15:38:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-18 15:38:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-18 15:38:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-12-18 15:38:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-12-18 15:38:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 15:38:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-12-18 15:38:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 15:38:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure run [2021-12-18 15:38:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 15:38:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 15:38:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 15:38:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 15:38:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 15:38:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-18 15:38:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-18 15:38:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2021-12-18 15:38:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2021-12-18 15:38:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-12-18 15:38:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-12-18 15:38:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2021-12-18 15:38:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 15:38:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 15:38:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 15:38:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2021-12-18 15:38:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 15:38:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 15:38:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-12-18 15:38:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-12-18 15:38:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 15:38:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 15:38:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2021-12-18 15:38:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2021-12-18 15:38:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 15:38:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 15:38:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 15:38:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 15:38:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2021-12-18 15:38:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2021-12-18 15:38:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2021-12-18 15:38:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2021-12-18 15:38:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 15:38:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 15:38:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2021-12-18 15:38:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2021-12-18 15:38:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-18 15:38:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-18 15:38:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2021-12-18 15:38:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2021-12-18 15:38:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2021-12-18 15:38:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 15:38:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 15:38:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 15:38:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-12-18 15:38:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-12-18 15:38:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-18 15:38:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-18 15:38:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2021-12-18 15:38:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2021-12-18 15:38:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2021-12-18 15:38:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2021-12-18 15:38:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-18 15:38:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-18 15:38:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2021-12-18 15:38:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2021-12-18 15:38:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2021-12-18 15:38:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 15:38:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_md_personality [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_md_personality [2021-12-18 15:38:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2021-12-18 15:38:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2021-12-18 15:38:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 15:38:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 15:38:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2021-12-18 15:38:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2021-12-18 15:38:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2021-12-18 15:38:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2021-12-18 15:38:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-18 15:38:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-18 15:38:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 15:38:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 15:38:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2021-12-18 15:38:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2021-12-18 15:38:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 15:38:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 15:38:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2021-12-18 15:38:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2021-12-18 15:38:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 15:38:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 15:38:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2021-12-18 15:38:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 15:38:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 15:38:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 15:38:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2021-12-18 15:38:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2021-12-18 15:38:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2021-12-18 15:38:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-12-18 15:38:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-12-18 15:38:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2021-12-18 15:38:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2021-12-18 15:38:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-18 15:38:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-18 15:38:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 15:38:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 15:38:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_len [2021-12-18 15:38:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_len [2021-12-18 15:38:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 15:38:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 15:38:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2021-12-18 15:38:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2021-12-18 15:38:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-12-18 15:38:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-12-18 15:38:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2021-12-18 15:38:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2021-12-18 15:38:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-18 15:38:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-18 15:38:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 15:38:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-18 15:38:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_175 [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_175 [2021-12-18 15:38:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 15:38:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-18 15:38:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2021-12-18 15:38:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2021-12-18 15:38:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2021-12-18 15:38:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2021-12-18 15:38:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2021-12-18 15:38:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2021-12-18 15:38:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 15:38:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 15:38:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-18 15:38:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2021-12-18 15:38:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 15:38:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2021-12-18 15:38:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2021-12-18 15:38:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 15:38:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 15:38:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 15:38:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 15:38:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure status [2021-12-18 15:38:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2021-12-18 15:38:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 15:38:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 15:38:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 15:38:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 15:38:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2021-12-18 15:38:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2021-12-18 15:38:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-18 15:38:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-18 15:38:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2021-12-18 15:38:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2021-12-18 15:38:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2021-12-18 15:38:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2021-12-18 15:38:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2021-12-18 15:38:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2021-12-18 15:38:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2021-12-18 15:38:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2021-12-18 15:38:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2021-12-18 15:38:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2021-12-18 15:38:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 15:38:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 15:38:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 15:38:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2021-12-18 15:38:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-18 15:38:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-12-18 15:38:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2021-12-18 15:38:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-18 15:38:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_md_personality [2021-12-18 15:38:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_md_personality [2021-12-18 15:38:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 15:38:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 15:38:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2021-12-18 15:38:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2021-12-18 15:38:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 15:38:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 15:38:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-18 15:38:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-18 15:38:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-12-18 15:38:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-12-18 15:38:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2021-12-18 15:38:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2021-12-18 15:38:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2021-12-18 15:38:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2021-12-18 15:38:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2021-12-18 15:38:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2021-12-18 15:38:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 15:38:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 15:38:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2021-12-18 15:38:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2021-12-18 15:38:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2021-12-18 15:38:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-18 15:38:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-12-18 15:38:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2021-12-18 15:38:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_store_stripe_cache_size [2021-12-18 15:38:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_store_stripe_cache_size [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-12-18 15:38:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2021-12-18 15:38:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2021-12-18 15:38:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2021-12-18 15:38:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 15:38:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 15:38:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 15:38:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 15:38:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2021-12-18 15:38:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2021-12-18 15:38:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2021-12-18 15:38:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2021-12-18 15:38:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2021-12-18 15:38:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2021-12-18 15:38:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2021-12-18 15:38:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 15:38:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_100 [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_100 [2021-12-18 15:38:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2021-12-18 15:38:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 15:38:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 15:38:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 15:38:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2021-12-18 15:38:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2021-12-18 15:38:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 15:38:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 15:38:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2021-12-18 15:38:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2021-12-18 15:38:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 15:38:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 15:38:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-12-18 15:38:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-12-18 15:38:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-12-18 15:38:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-12-18 15:38:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2021-12-18 15:38:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2021-12-18 15:38:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 15:38:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 15:38:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2021-12-18 15:38:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2021-12-18 15:38:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 15:38:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2021-12-18 15:38:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-12-18 15:38:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 15:38:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2021-12-18 15:38:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 15:38:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 15:38:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2021-12-18 15:38:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2021-12-18 15:38:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2021-12-18 15:38:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2021-12-18 15:38:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2021-12-18 15:38:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2021-12-18 15:38:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 15:38:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 15:38:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_136 [2021-12-18 15:38:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_136 [2021-12-18 15:38:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-18 15:38:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-18 15:38:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 15:38:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 15:38:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-12-18 15:38:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-12-18 15:38:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-18 15:38:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-18 15:38:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 15:38:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 15:38:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_121 [2021-12-18 15:38:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_121 [2021-12-18 15:38:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-18 15:38:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-18 15:38:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 15:38:05,966 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 15:38:05,969 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 15:38:06,261 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 15:38:19,891 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 15:38:19,919 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 15:38:19,919 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-18 15:38:19,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:38:19 BoogieIcfgContainer [2021-12-18 15:38:19,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 15:38:19,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 15:38:19,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 15:38:19,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 15:38:19,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:37:55" (1/3) ... [2021-12-18 15:38:19,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15baee03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:38:19, skipping insertion in model container [2021-12-18 15:38:19,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:38:03" (2/3) ... [2021-12-18 15:38:19,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15baee03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:38:19, skipping insertion in model container [2021-12-18 15:38:19,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:38:19" (3/3) ... [2021-12-18 15:38:19,934 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-12-18 15:38:19,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 15:38:19,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-12-18 15:38:20,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 15:38:20,062 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 15:38:20,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-12-18 15:38:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 4237 states, 2821 states have (on average 1.3438496986884083) internal successors, (3791), 2979 states have internal predecessors, (3791), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) [2021-12-18 15:38:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 15:38:20,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:38:20,144 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:38:20,144 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:38:20,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:38:20,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1093816885, now seen corresponding path program 1 times [2021-12-18 15:38:20,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:38:20,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523633497] [2021-12-18 15:38:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:38:20,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:38:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:38:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:38:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:38:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:38:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:38:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:38:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:38:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:38:20,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:38:20,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523633497] [2021-12-18 15:38:20,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523633497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:38:20,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:38:20,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:38:20,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213997304] [2021-12-18 15:38:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:38:20,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:38:20,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:38:20,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:38:20,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:38:20,729 INFO L87 Difference]: Start difference. First operand has 4237 states, 2821 states have (on average 1.3438496986884083) internal successors, (3791), 2979 states have internal predecessors, (3791), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 15:38:26,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:38:28,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:38:34,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:38:37,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:38:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:38:41,564 INFO L93 Difference]: Finished difference Result 8409 states and 12379 transitions. [2021-12-18 15:38:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:38:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2021-12-18 15:38:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:38:41,607 INFO L225 Difference]: With dead ends: 8409 [2021-12-18 15:38:41,607 INFO L226 Difference]: Without dead ends: 4166 [2021-12-18 15:38:41,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:38:41,643 INFO L933 BasicCegarLoop]: 4837 mSDtfsCounter, 10848 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 5866 mSolverCounterSat, 6626 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10902 SdHoareTripleChecker+Valid, 6178 SdHoareTripleChecker+Invalid, 12496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6626 IncrementalHoareTripleChecker+Valid, 5866 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:38:41,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10902 Valid, 6178 Invalid, 12496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6626 Valid, 5866 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2021-12-18 15:38:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2021-12-18 15:38:41,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4166. [2021-12-18 15:38:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 2761 states have (on average 1.3082216588192683) internal successors, (3612), 2911 states have internal predecessors, (3612), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:38:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5892 transitions. [2021-12-18 15:38:41,916 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5892 transitions. Word has length 50 [2021-12-18 15:38:41,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:38:41,918 INFO L470 AbstractCegarLoop]: Abstraction has 4166 states and 5892 transitions. [2021-12-18 15:38:41,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 15:38:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5892 transitions. [2021-12-18 15:38:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-18 15:38:41,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:38:41,925 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:38:41,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 15:38:41,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:38:41,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:38:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 106761369, now seen corresponding path program 1 times [2021-12-18 15:38:41,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:38:41,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773609967] [2021-12-18 15:38:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:38:41,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:38:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:38:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:38:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:38:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:38:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:38:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:38:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:38:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:38:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:38:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:38:42,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:38:42,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773609967] [2021-12-18 15:38:42,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773609967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:38:42,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:38:42,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:38:42,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542719538] [2021-12-18 15:38:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:38:42,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:38:42,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:38:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:38:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:38:42,270 INFO L87 Difference]: Start difference. First operand 4166 states and 5892 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:38:46,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:38:50,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:38:56,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:38:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:38:59,938 INFO L93 Difference]: Finished difference Result 4166 states and 5892 transitions. [2021-12-18 15:38:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:38:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2021-12-18 15:38:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:38:59,960 INFO L225 Difference]: With dead ends: 4166 [2021-12-18 15:38:59,961 INFO L226 Difference]: Without dead ends: 4164 [2021-12-18 15:38:59,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:38:59,965 INFO L933 BasicCegarLoop]: 4807 mSDtfsCounter, 10790 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5845 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10841 SdHoareTripleChecker+Valid, 6132 SdHoareTripleChecker+Invalid, 12452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5845 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:38:59,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10841 Valid, 6132 Invalid, 12452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5845 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 15:38:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-12-18 15:39:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4164. [2021-12-18 15:39:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4164 states, 2760 states have (on average 1.3079710144927537) internal successors, (3610), 2909 states have internal predecessors, (3610), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:39:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 5890 transitions. [2021-12-18 15:39:00,178 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 5890 transitions. Word has length 56 [2021-12-18 15:39:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:39:00,180 INFO L470 AbstractCegarLoop]: Abstraction has 4164 states and 5890 transitions. [2021-12-18 15:39:00,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:39:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 5890 transitions. [2021-12-18 15:39:00,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-18 15:39:00,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:39:00,184 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:39:00,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 15:39:00,185 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:39:00,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:39:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash -894612821, now seen corresponding path program 1 times [2021-12-18 15:39:00,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:39:00,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102527214] [2021-12-18 15:39:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:39:00,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:39:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:39:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:39:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:39:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:39:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:39:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:39:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:39:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:39:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:39:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:39:00,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:39:00,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102527214] [2021-12-18 15:39:00,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102527214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:39:00,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:39:00,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:39:00,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199429001] [2021-12-18 15:39:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:39:00,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:39:00,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:39:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:39:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:39:00,442 INFO L87 Difference]: Start difference. First operand 4164 states and 5890 transitions. 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, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:39:04,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:10,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:39:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:39:13,365 INFO L93 Difference]: Finished difference Result 4164 states and 5890 transitions. [2021-12-18 15:39:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:39:13,366 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, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2021-12-18 15:39:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:39:13,382 INFO L225 Difference]: With dead ends: 4164 [2021-12-18 15:39:13,382 INFO L226 Difference]: Without dead ends: 4162 [2021-12-18 15:39:13,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:39:13,388 INFO L933 BasicCegarLoop]: 4805 mSDtfsCounter, 10784 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10834 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 12450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:39:13,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10834 Valid, 6130 Invalid, 12450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5844 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2021-12-18 15:39:13,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4162 states. [2021-12-18 15:39:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4162 to 4162. [2021-12-18 15:39:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 2759 states have (on average 1.3077201884740848) internal successors, (3608), 2907 states have internal predecessors, (3608), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:39:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5888 transitions. [2021-12-18 15:39:13,534 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5888 transitions. Word has length 62 [2021-12-18 15:39:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:39:13,535 INFO L470 AbstractCegarLoop]: Abstraction has 4162 states and 5888 transitions. [2021-12-18 15:39:13,535 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, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:39:13,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5888 transitions. [2021-12-18 15:39:13,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-18 15:39:13,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:39:13,536 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:39:13,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 15:39:13,537 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:39:13,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:39:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 233877897, now seen corresponding path program 1 times [2021-12-18 15:39:13,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:39:13,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233224887] [2021-12-18 15:39:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:39:13,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:39:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:39:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:39:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:39:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:39:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:39:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:39:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:39:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:39:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:39:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:39:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:39:13,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:39:13,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233224887] [2021-12-18 15:39:13,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233224887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:39:13,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:39:13,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:39:13,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387084802] [2021-12-18 15:39:13,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:39:13,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:39:13,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:39:13,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:39:13,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:39:13,830 INFO L87 Difference]: Start difference. First operand 4162 states and 5888 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, (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) [2021-12-18 15:39:18,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:39:21,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:23,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:29,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:39:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:39:33,019 INFO L93 Difference]: Finished difference Result 4162 states and 5888 transitions. [2021-12-18 15:39:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:39:33,020 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, (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 68 [2021-12-18 15:39:33,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:39:33,041 INFO L225 Difference]: With dead ends: 4162 [2021-12-18 15:39:33,041 INFO L226 Difference]: Without dead ends: 4160 [2021-12-18 15:39:33,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:39:33,046 INFO L933 BasicCegarLoop]: 4803 mSDtfsCounter, 10778 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5840 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10827 SdHoareTripleChecker+Valid, 6128 SdHoareTripleChecker+Invalid, 12448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5840 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2021-12-18 15:39:33,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10827 Valid, 6128 Invalid, 12448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5840 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2021-12-18 15:39:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2021-12-18 15:39:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 4160. [2021-12-18 15:39:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4160 states, 2758 states have (on average 1.3074691805656273) internal successors, (3606), 2905 states have internal predecessors, (3606), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:39:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4160 states to 4160 states and 5886 transitions. [2021-12-18 15:39:33,222 INFO L78 Accepts]: Start accepts. Automaton has 4160 states and 5886 transitions. Word has length 68 [2021-12-18 15:39:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:39:33,223 INFO L470 AbstractCegarLoop]: Abstraction has 4160 states and 5886 transitions. [2021-12-18 15:39:33,224 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, (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) [2021-12-18 15:39:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4160 states and 5886 transitions. [2021-12-18 15:39:33,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-18 15:39:33,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:39:33,226 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:39:33,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 15:39:33,227 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:39:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:39:33,227 INFO L85 PathProgramCache]: Analyzing trace with hash -626815470, now seen corresponding path program 1 times [2021-12-18 15:39:33,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:39:33,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380247131] [2021-12-18 15:39:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:39:33,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:39:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:39:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:39:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:39:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:39:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:39:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:39:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:39:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:39:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:39:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:39:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:39:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:39:33,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:39:33,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380247131] [2021-12-18 15:39:33,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380247131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:39:33,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:39:33,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:39:33,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826555117] [2021-12-18 15:39:33,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:39:33,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:39:33,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:39:33,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:39:33,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:39:33,498 INFO L87 Difference]: Start difference. First operand 4160 states and 5886 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, (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) [2021-12-18 15:39:38,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:40,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:47,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:39:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:39:50,980 INFO L93 Difference]: Finished difference Result 4160 states and 5886 transitions. [2021-12-18 15:39:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:39:50,980 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, (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 74 [2021-12-18 15:39:50,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:39:50,999 INFO L225 Difference]: With dead ends: 4160 [2021-12-18 15:39:50,999 INFO L226 Difference]: Without dead ends: 4158 [2021-12-18 15:39:51,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:39:51,003 INFO L933 BasicCegarLoop]: 4801 mSDtfsCounter, 10772 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5839 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10820 SdHoareTripleChecker+Valid, 6126 SdHoareTripleChecker+Invalid, 12446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5839 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:39:51,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10820 Valid, 6126 Invalid, 12446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5839 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2021-12-18 15:39:51,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2021-12-18 15:39:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 4158. [2021-12-18 15:39:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 2757 states have (on average 1.3072179905694596) internal successors, (3604), 2903 states have internal predecessors, (3604), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:39:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5884 transitions. [2021-12-18 15:39:51,147 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5884 transitions. Word has length 74 [2021-12-18 15:39:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:39:51,148 INFO L470 AbstractCegarLoop]: Abstraction has 4158 states and 5884 transitions. [2021-12-18 15:39:51,148 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, (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) [2021-12-18 15:39:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5884 transitions. [2021-12-18 15:39:51,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-18 15:39:51,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:39:51,150 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:39:51,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 15:39:51,150 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:39:51,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:39:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1711474696, now seen corresponding path program 1 times [2021-12-18 15:39:51,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:39:51,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879758020] [2021-12-18 15:39:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:39:51,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:39:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:39:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:39:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:39:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:39:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:39:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:39:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:39:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:39:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:39:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:39:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:39:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:39:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:39:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:39:51,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:39:51,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879758020] [2021-12-18 15:39:51,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879758020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:39:51,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:39:51,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:39:51,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024262182] [2021-12-18 15:39:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:39:51,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:39:51,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:39:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:39:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:39:51,399 INFO L87 Difference]: Start difference. First operand 4158 states and 5884 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, (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) [2021-12-18 15:39:56,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:39:58,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:40:03,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:06,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:40:10,243 INFO L93 Difference]: Finished difference Result 4158 states and 5884 transitions. [2021-12-18 15:40:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:40:10,244 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, (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 80 [2021-12-18 15:40:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:40:10,259 INFO L225 Difference]: With dead ends: 4158 [2021-12-18 15:40:10,259 INFO L226 Difference]: Without dead ends: 4156 [2021-12-18 15:40:10,261 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 [2021-12-18 15:40:10,262 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 10766 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5836 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10813 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 12444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5836 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:40:10,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10813 Valid, 6124 Invalid, 12444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5836 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 15:40:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-12-18 15:40:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4156. [2021-12-18 15:40:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4156 states, 2756 states have (on average 1.306966618287373) internal successors, (3602), 2901 states have internal predecessors, (3602), 1141 states have call successors, (1141), 233 states have call predecessors, (1141), 232 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-12-18 15:40:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4156 states to 4156 states and 5882 transitions. [2021-12-18 15:40:10,398 INFO L78 Accepts]: Start accepts. Automaton has 4156 states and 5882 transitions. Word has length 80 [2021-12-18 15:40:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:40:10,398 INFO L470 AbstractCegarLoop]: Abstraction has 4156 states and 5882 transitions. [2021-12-18 15:40:10,399 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, (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) [2021-12-18 15:40:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4156 states and 5882 transitions. [2021-12-18 15:40:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-18 15:40:10,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:40:10,400 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:40:10,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 15:40:10,400 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:40:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:40:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1336943105, now seen corresponding path program 1 times [2021-12-18 15:40:10,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:40:10,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917813410] [2021-12-18 15:40:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:40:10,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:40:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:40:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:40:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:40:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:40:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:40:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:40:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:40:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:40:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:40:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:40:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:40:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:40:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:40:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:40:10,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:40:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917813410] [2021-12-18 15:40:10,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917813410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:40:10,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:40:10,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:40:10,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664484168] [2021-12-18 15:40:10,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:40:10,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:40:10,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:40:10,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:40:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:40:10,637 INFO L87 Difference]: Start difference. First operand 4156 states and 5882 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, (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) [2021-12-18 15:40:16,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:40:18,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:23,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:40:31,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:36,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:42,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:40:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:40:47,738 INFO L93 Difference]: Finished difference Result 8303 states and 11757 transitions. [2021-12-18 15:40:47,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:40:47,739 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, (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 86 [2021-12-18 15:40:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:40:47,786 INFO L225 Difference]: With dead ends: 8303 [2021-12-18 15:40:47,787 INFO L226 Difference]: Without dead ends: 8301 [2021-12-18 15:40:47,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:40:47,794 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 17865 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 12755 mSolverCounterSat, 11052 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17908 SdHoareTripleChecker+Valid, 7473 SdHoareTripleChecker+Invalid, 23813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11052 IncrementalHoareTripleChecker+Valid, 12755 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:40:47,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17908 Valid, 7473 Invalid, 23813 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11052 Valid, 12755 Invalid, 6 Unknown, 0 Unchecked, 36.0s Time] [2021-12-18 15:40:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8301 states. [2021-12-18 15:40:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8301 to 8159. [2021-12-18 15:40:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8159 states, 5427 states have (on average 1.3090105030403538) internal successors, (7104), 5691 states have internal predecessors, (7104), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:40:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8159 states to 8159 states and 11614 transitions. [2021-12-18 15:40:48,185 INFO L78 Accepts]: Start accepts. Automaton has 8159 states and 11614 transitions. Word has length 86 [2021-12-18 15:40:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:40:48,186 INFO L470 AbstractCegarLoop]: Abstraction has 8159 states and 11614 transitions. [2021-12-18 15:40:48,186 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, (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) [2021-12-18 15:40:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8159 states and 11614 transitions. [2021-12-18 15:40:48,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-18 15:40:48,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:40:48,189 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 15:40:48,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 15:40:48,189 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:40:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:40:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2141625258, now seen corresponding path program 1 times [2021-12-18 15:40:48,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:40:48,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804136833] [2021-12-18 15:40:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:40:48,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:40:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:40:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:40:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:40:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:40:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:40:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:40:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:40:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:40:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:40:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:40:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:40:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:40:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:40:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:40:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:40:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:40:48,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:40:48,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804136833] [2021-12-18 15:40:48,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804136833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:40:48,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:40:48,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:40:48,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81876480] [2021-12-18 15:40:48,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:40:48,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:40:48,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:40:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:40:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:40:48,426 INFO L87 Difference]: Start difference. First operand 8159 states and 11614 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, (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) [2021-12-18 15:40:53,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:40:55,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:02,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:41:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:41:05,786 INFO L93 Difference]: Finished difference Result 8159 states and 11614 transitions. [2021-12-18 15:41:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:41:05,786 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, (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 92 [2021-12-18 15:41:05,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:41:05,817 INFO L225 Difference]: With dead ends: 8159 [2021-12-18 15:41:05,818 INFO L226 Difference]: Without dead ends: 8157 [2021-12-18 15:41:05,825 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 [2021-12-18 15:41:05,826 INFO L933 BasicCegarLoop]: 4797 mSDtfsCounter, 10764 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5831 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10809 SdHoareTripleChecker+Valid, 6122 SdHoareTripleChecker+Invalid, 12438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5831 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:41:05,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10809 Valid, 6122 Invalid, 12438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5831 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2021-12-18 15:41:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8157 states. [2021-12-18 15:41:06,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8157 to 8157. [2021-12-18 15:41:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8157 states, 5426 states have (on average 1.308883155178769) internal successors, (7102), 5689 states have internal predecessors, (7102), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:41:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8157 states to 8157 states and 11612 transitions. [2021-12-18 15:41:06,155 INFO L78 Accepts]: Start accepts. Automaton has 8157 states and 11612 transitions. Word has length 92 [2021-12-18 15:41:06,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:41:06,155 INFO L470 AbstractCegarLoop]: Abstraction has 8157 states and 11612 transitions. [2021-12-18 15:41:06,156 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, (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) [2021-12-18 15:41:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 8157 states and 11612 transitions. [2021-12-18 15:41:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-18 15:41:06,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:41:06,157 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:41:06,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 15:41:06,157 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:41:06,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:41:06,158 INFO L85 PathProgramCache]: Analyzing trace with hash 812826381, now seen corresponding path program 1 times [2021-12-18 15:41:06,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:41:06,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158716687] [2021-12-18 15:41:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:41:06,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:41:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:41:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:41:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:41:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:41:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:41:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:41:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:41:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:41:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:41:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:41:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:41:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:41:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:41:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:41:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:41:06,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:41:06,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158716687] [2021-12-18 15:41:06,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158716687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:41:06,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:41:06,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:41:06,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277070791] [2021-12-18 15:41:06,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:41:06,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:41:06,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:41:06,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:41:06,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:41:06,373 INFO L87 Difference]: Start difference. First operand 8157 states and 11612 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 15:41:11,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:13,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:20,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:41:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:41:24,452 INFO L93 Difference]: Finished difference Result 8157 states and 11612 transitions. [2021-12-18 15:41:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:41:24,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 94 [2021-12-18 15:41:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:41:24,474 INFO L225 Difference]: With dead ends: 8157 [2021-12-18 15:41:24,474 INFO L226 Difference]: Without dead ends: 8155 [2021-12-18 15:41:24,477 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 [2021-12-18 15:41:24,480 INFO L933 BasicCegarLoop]: 4795 mSDtfsCounter, 10752 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5833 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10797 SdHoareTripleChecker+Valid, 6120 SdHoareTripleChecker+Invalid, 12440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5833 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:41:24,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10797 Valid, 6120 Invalid, 12440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5833 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 15:41:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8155 states. [2021-12-18 15:41:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8155 to 8155. [2021-12-18 15:41:24,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8155 states, 5425 states have (on average 1.3087557603686637) internal successors, (7100), 5687 states have internal predecessors, (7100), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:41:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8155 states to 8155 states and 11610 transitions. [2021-12-18 15:41:24,771 INFO L78 Accepts]: Start accepts. Automaton has 8155 states and 11610 transitions. Word has length 94 [2021-12-18 15:41:24,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:41:24,772 INFO L470 AbstractCegarLoop]: Abstraction has 8155 states and 11610 transitions. [2021-12-18 15:41:24,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 15:41:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8155 states and 11610 transitions. [2021-12-18 15:41:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-18 15:41:24,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:41:24,773 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:41:24,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 15:41:24,774 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:41:24,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:41:24,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1738193882, now seen corresponding path program 1 times [2021-12-18 15:41:24,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:41:24,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535879750] [2021-12-18 15:41:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:41:24,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:41:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:41:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:41:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:41:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:41:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:41:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:41:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:41:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:41:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:41:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:41:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:41:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:41:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:41:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:41:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:41:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:41:24,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:41:25,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535879750] [2021-12-18 15:41:25,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535879750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:41:25,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:41:25,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:41:25,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307700790] [2021-12-18 15:41:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:41:25,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:41:25,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:41:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:41:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:41:25,001 INFO L87 Difference]: Start difference. First operand 8155 states and 11610 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2021-12-18 15:41:30,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:32,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:37,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:41:40,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:41:44,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:41:44,553 INFO L93 Difference]: Finished difference Result 8155 states and 11610 transitions. [2021-12-18 15:41:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:41:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 100 [2021-12-18 15:41:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:41:44,603 INFO L225 Difference]: With dead ends: 8155 [2021-12-18 15:41:44,604 INFO L226 Difference]: Without dead ends: 8153 [2021-12-18 15:41:44,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:41:44,608 INFO L933 BasicCegarLoop]: 4793 mSDtfsCounter, 10748 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5830 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10792 SdHoareTripleChecker+Valid, 6118 SdHoareTripleChecker+Invalid, 12438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5830 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:41:44,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10792 Valid, 6118 Invalid, 12438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5830 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2021-12-18 15:41:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8153 states. [2021-12-18 15:41:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8153 to 8153. [2021-12-18 15:41:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8153 states, 5424 states have (on average 1.3086283185840708) internal successors, (7098), 5685 states have internal predecessors, (7098), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:41:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8153 states to 8153 states and 11608 transitions. [2021-12-18 15:41:44,923 INFO L78 Accepts]: Start accepts. Automaton has 8153 states and 11608 transitions. Word has length 100 [2021-12-18 15:41:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:41:44,924 INFO L470 AbstractCegarLoop]: Abstraction has 8153 states and 11608 transitions. [2021-12-18 15:41:44,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2021-12-18 15:41:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8153 states and 11608 transitions. [2021-12-18 15:41:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-18 15:41:44,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:41:44,931 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:41:44,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 15:41:44,932 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:41:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:41:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash -709467308, now seen corresponding path program 1 times [2021-12-18 15:41:44,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:41:44,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149052663] [2021-12-18 15:41:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:41:44,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:41:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:41:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:41:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:41:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:41:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:41:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:41:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:41:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:41:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:41:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:41:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:41:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:41:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:41:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:41:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:41:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:41:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:41:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:41:45,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:41:45,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149052663] [2021-12-18 15:41:45,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149052663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:41:45,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:41:45,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:41:45,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551558357] [2021-12-18 15:41:45,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:41:45,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:41:45,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:41:45,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:41:45,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:41:45,163 INFO L87 Difference]: Start difference. First operand 8153 states and 11608 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, (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) [2021-12-18 15:41:50,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:52,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:41:59,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:42:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:42:02,906 INFO L93 Difference]: Finished difference Result 8153 states and 11608 transitions. [2021-12-18 15:42:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:42:02,907 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, (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 106 [2021-12-18 15:42:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:42:02,933 INFO L225 Difference]: With dead ends: 8153 [2021-12-18 15:42:02,934 INFO L226 Difference]: Without dead ends: 8151 [2021-12-18 15:42:02,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:42:02,939 INFO L933 BasicCegarLoop]: 4790 mSDtfsCounter, 10742 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5830 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10785 SdHoareTripleChecker+Valid, 6115 SdHoareTripleChecker+Invalid, 12437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5830 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:42:02,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10785 Valid, 6115 Invalid, 12437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5830 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 15:42:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8151 states. [2021-12-18 15:42:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 8151. [2021-12-18 15:42:03,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8151 states, 5423 states have (on average 1.3085008297990042) internal successors, (7096), 5683 states have internal predecessors, (7096), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:42:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8151 states to 8151 states and 11606 transitions. [2021-12-18 15:42:03,256 INFO L78 Accepts]: Start accepts. Automaton has 8151 states and 11606 transitions. Word has length 106 [2021-12-18 15:42:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:42:03,257 INFO L470 AbstractCegarLoop]: Abstraction has 8151 states and 11606 transitions. [2021-12-18 15:42:03,257 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, (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) [2021-12-18 15:42:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8151 states and 11606 transitions. [2021-12-18 15:42:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-18 15:42:03,259 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:42:03,259 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:42:03,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 15:42:03,259 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:42:03,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:42:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash -889693330, now seen corresponding path program 1 times [2021-12-18 15:42:03,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:42:03,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11161883] [2021-12-18 15:42:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:42:03,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:42:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:42:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:42:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:42:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:42:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:42:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:42:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:42:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:42:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:42:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:42:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:42:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:42:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:42:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:42:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:42:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:42:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:42:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:42:03,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:42:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11161883] [2021-12-18 15:42:03,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11161883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:42:03,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:42:03,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:42:03,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167931113] [2021-12-18 15:42:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:42:03,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:42:03,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:42:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:42:03,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:42:03,520 INFO L87 Difference]: Start difference. First operand 8151 states and 11606 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, (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) [2021-12-18 15:42:08,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:42:14,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:42:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:42:18,292 INFO L93 Difference]: Finished difference Result 8151 states and 11606 transitions. [2021-12-18 15:42:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:42:18,292 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, (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 112 [2021-12-18 15:42:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:42:18,316 INFO L225 Difference]: With dead ends: 8151 [2021-12-18 15:42:18,316 INFO L226 Difference]: Without dead ends: 8149 [2021-12-18 15:42:18,320 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 [2021-12-18 15:42:18,321 INFO L933 BasicCegarLoop]: 4788 mSDtfsCounter, 10736 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5829 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10778 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 12435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5829 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-12-18 15:42:18,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10778 Valid, 6113 Invalid, 12435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6604 Valid, 5829 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2021-12-18 15:42:18,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8149 states. [2021-12-18 15:42:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 8149. [2021-12-18 15:42:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8149 states, 5422 states have (on average 1.3083732939874586) internal successors, (7094), 5681 states have internal predecessors, (7094), 2253 states have call successors, (2253), 453 states have call predecessors, (2253), 452 states have return successors, (2257), 2208 states have call predecessors, (2257), 2251 states have call successors, (2257) [2021-12-18 15:42:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8149 states to 8149 states and 11604 transitions. [2021-12-18 15:42:18,690 INFO L78 Accepts]: Start accepts. Automaton has 8149 states and 11604 transitions. Word has length 112 [2021-12-18 15:42:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:42:18,692 INFO L470 AbstractCegarLoop]: Abstraction has 8149 states and 11604 transitions. [2021-12-18 15:42:18,692 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, (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) [2021-12-18 15:42:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8149 states and 11604 transitions. [2021-12-18 15:42:18,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-18 15:42:18,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:42:18,693 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:42:18,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 15:42:18,694 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:42:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:42:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1126428746, now seen corresponding path program 1 times [2021-12-18 15:42:18,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:42:18,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417104165] [2021-12-18 15:42:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:42:18,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:42:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:42:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:42:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:42:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:42:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:42:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:42:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:42:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:42:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:42:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:42:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:42:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:42:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:42:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:42:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:42:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:42:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:42:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:42:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:42:18,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:42:18,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417104165] [2021-12-18 15:42:18,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417104165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:42:18,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:42:18,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:42:18,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811573818] [2021-12-18 15:42:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:42:18,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:42:18,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:42:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:42:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:42:18,897 INFO L87 Difference]: Start difference. First operand 8149 states and 11604 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, (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) [2021-12-18 15:42:25,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:42:27,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:42:32,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:42:34,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:42:43,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:42:49,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:42:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:42:54,525 INFO L93 Difference]: Finished difference Result 11901 states and 16938 transitions. [2021-12-18 15:42:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:42:54,526 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, (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 118 [2021-12-18 15:42:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:42:54,561 INFO L225 Difference]: With dead ends: 11901 [2021-12-18 15:42:54,561 INFO L226 Difference]: Without dead ends: 11899 [2021-12-18 15:42:54,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:42:54,566 INFO L933 BasicCegarLoop]: 5395 mSDtfsCounter, 15935 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 12986 mSolverCounterSat, 10192 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15973 SdHoareTripleChecker+Valid, 8120 SdHoareTripleChecker+Invalid, 23184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10192 IncrementalHoareTripleChecker+Valid, 12986 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-12-18 15:42:54,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15973 Valid, 8120 Invalid, 23184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10192 Valid, 12986 Invalid, 6 Unknown, 0 Unchecked, 34.6s Time] [2021-12-18 15:42:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11899 states. [2021-12-18 15:42:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11899 to 11795. [2021-12-18 15:42:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11795 states, 7858 states have (on average 1.3082209213540341) internal successors, (10280), 8231 states have internal predecessors, (10280), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:42:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11795 states to 11795 states and 16829 transitions. [2021-12-18 15:42:55,120 INFO L78 Accepts]: Start accepts. Automaton has 11795 states and 16829 transitions. Word has length 118 [2021-12-18 15:42:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:42:55,121 INFO L470 AbstractCegarLoop]: Abstraction has 11795 states and 16829 transitions. [2021-12-18 15:42:55,121 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, (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) [2021-12-18 15:42:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 11795 states and 16829 transitions. [2021-12-18 15:42:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-18 15:42:55,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:42:55,123 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:42:55,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 15:42:55,123 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:42:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:42:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -571888981, now seen corresponding path program 1 times [2021-12-18 15:42:55,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:42:55,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142057520] [2021-12-18 15:42:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:42:55,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:42:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:42:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:42:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:42:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:42:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:42:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:42:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:42:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:42:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:42:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:42:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:42:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:42:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:42:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:42:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:42:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:42:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:42:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:42:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:42:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:42:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:42:55,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:42:55,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142057520] [2021-12-18 15:42:55,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142057520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:42:55,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:42:55,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:42:55,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950749691] [2021-12-18 15:42:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:42:55,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:42:55,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:42:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:42:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:42:55,365 INFO L87 Difference]: Start difference. First operand 11795 states and 16829 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, (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) [2021-12-18 15:43:01,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:43:03,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:43:10,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:43:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:43:14,556 INFO L93 Difference]: Finished difference Result 11795 states and 16829 transitions. [2021-12-18 15:43:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:43:14,556 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, (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 124 [2021-12-18 15:43:14,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:43:14,618 INFO L225 Difference]: With dead ends: 11795 [2021-12-18 15:43:14,618 INFO L226 Difference]: Without dead ends: 11793 [2021-12-18 15:43:14,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:43:14,623 INFO L933 BasicCegarLoop]: 4786 mSDtfsCounter, 10730 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 6604 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10770 SdHoareTripleChecker+Valid, 6111 SdHoareTripleChecker+Invalid, 12433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:43:14,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10770 Valid, 6111 Invalid, 12433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5826 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 15:43:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2021-12-18 15:43:15,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 11793. [2021-12-18 15:43:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11793 states, 7857 states have (on average 1.3081328751431844) internal successors, (10278), 8229 states have internal predecessors, (10278), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:43:15,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11793 states to 11793 states and 16827 transitions. [2021-12-18 15:43:15,076 INFO L78 Accepts]: Start accepts. Automaton has 11793 states and 16827 transitions. Word has length 124 [2021-12-18 15:43:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:43:15,076 INFO L470 AbstractCegarLoop]: Abstraction has 11793 states and 16827 transitions. [2021-12-18 15:43:15,077 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, (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) [2021-12-18 15:43:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11793 states and 16827 transitions. [2021-12-18 15:43:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-18 15:43:15,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:43:15,078 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:43:15,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 15:43:15,079 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:43:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:43:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash -30369031, now seen corresponding path program 1 times [2021-12-18 15:43:15,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:43:15,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301830485] [2021-12-18 15:43:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:43:15,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:43:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:43:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:43:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:43:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:43:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:43:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:43:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:43:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:43:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:43:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:43:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:43:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:43:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:43:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:43:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:43:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:43:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:43:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:43:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:43:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:43:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:43:15,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:43:15,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301830485] [2021-12-18 15:43:15,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301830485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:43:15,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:43:15,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:43:15,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617268309] [2021-12-18 15:43:15,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:43:15,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:43:15,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:43:15,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:43:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:43:15,409 INFO L87 Difference]: Start difference. First operand 11793 states and 16827 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, (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) [2021-12-18 15:43:21,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:43:23,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:43:30,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:43:33,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:43:38,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:43:38,629 INFO L93 Difference]: Finished difference Result 11793 states and 16827 transitions. [2021-12-18 15:43:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:43:38,629 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, (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 130 [2021-12-18 15:43:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:43:38,673 INFO L225 Difference]: With dead ends: 11793 [2021-12-18 15:43:38,674 INFO L226 Difference]: Without dead ends: 11791 [2021-12-18 15:43:38,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:43:38,679 INFO L933 BasicCegarLoop]: 4785 mSDtfsCounter, 10724 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5822 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10763 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 12430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5822 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-12-18 15:43:38,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10763 Valid, 6110 Invalid, 12430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5822 Invalid, 4 Unknown, 0 Unchecked, 22.3s Time] [2021-12-18 15:43:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2021-12-18 15:43:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 11791. [2021-12-18 15:43:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11791 states, 7856 states have (on average 1.3080448065173116) internal successors, (10276), 8227 states have internal predecessors, (10276), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:43:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11791 states to 11791 states and 16825 transitions. [2021-12-18 15:43:39,215 INFO L78 Accepts]: Start accepts. Automaton has 11791 states and 16825 transitions. Word has length 130 [2021-12-18 15:43:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:43:39,215 INFO L470 AbstractCegarLoop]: Abstraction has 11791 states and 16825 transitions. [2021-12-18 15:43:39,215 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, (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) [2021-12-18 15:43:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 11791 states and 16825 transitions. [2021-12-18 15:43:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-18 15:43:39,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:43:39,219 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:43:39,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 15:43:39,219 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:43:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:43:39,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1805189708, now seen corresponding path program 1 times [2021-12-18 15:43:39,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:43:39,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811986394] [2021-12-18 15:43:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:43:39,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:43:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:43:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:43:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:43:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:43:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:43:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:43:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:43:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:43:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:43:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:43:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:43:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:43:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:43:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:43:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:43:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:43:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:43:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:43:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:43:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:43:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:43:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:43:39,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:43:39,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811986394] [2021-12-18 15:43:39,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811986394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:43:39,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:43:39,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:43:39,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947981256] [2021-12-18 15:43:39,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:43:39,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:43:39,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:43:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:43:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:43:39,558 INFO L87 Difference]: Start difference. First operand 11791 states and 16825 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, (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) [2021-12-18 15:43:45,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:43:52,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:43:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:43:57,634 INFO L93 Difference]: Finished difference Result 11791 states and 16825 transitions. [2021-12-18 15:43:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:43:57,634 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, (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 136 [2021-12-18 15:43:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:43:57,669 INFO L225 Difference]: With dead ends: 11791 [2021-12-18 15:43:57,670 INFO L226 Difference]: Without dead ends: 11789 [2021-12-18 15:43:57,676 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 [2021-12-18 15:43:57,677 INFO L933 BasicCegarLoop]: 4783 mSDtfsCounter, 10718 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5822 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10756 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 12428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5822 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-18 15:43:57,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10756 Valid, 6108 Invalid, 12428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5822 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2021-12-18 15:43:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11789 states. [2021-12-18 15:43:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11789 to 11789. [2021-12-18 15:43:58,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11789 states, 7855 states have (on average 1.3079567154678549) internal successors, (10274), 8225 states have internal predecessors, (10274), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:43:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11789 states to 11789 states and 16823 transitions. [2021-12-18 15:43:58,249 INFO L78 Accepts]: Start accepts. Automaton has 11789 states and 16823 transitions. Word has length 136 [2021-12-18 15:43:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:43:58,250 INFO L470 AbstractCegarLoop]: Abstraction has 11789 states and 16823 transitions. [2021-12-18 15:43:58,250 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, (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) [2021-12-18 15:43:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11789 states and 16823 transitions. [2021-12-18 15:43:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-18 15:43:58,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:43:58,253 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:43:58,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 15:43:58,253 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:43:58,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:43:58,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1837999894, now seen corresponding path program 1 times [2021-12-18 15:43:58,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:43:58,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076236237] [2021-12-18 15:43:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:43:58,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:43:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:43:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:43:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:43:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:43:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:43:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:43:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:43:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:43:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:43:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:43:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:43:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:43:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:43:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:43:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:43:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:43:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:43:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:43:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:43:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:43:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:43:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:43:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:43:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:43:58,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:43:58,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076236237] [2021-12-18 15:43:58,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076236237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:43:58,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:43:58,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:43:58,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716154149] [2021-12-18 15:43:58,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:43:58,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:43:58,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:43:58,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:43:58,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:43:58,535 INFO L87 Difference]: Start difference. First operand 11789 states and 16823 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, (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) [2021-12-18 15:44:02,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:44:12,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:44:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:44:17,981 INFO L93 Difference]: Finished difference Result 11789 states and 16823 transitions. [2021-12-18 15:44:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:44:17,981 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, (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 142 [2021-12-18 15:44:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:44:18,016 INFO L225 Difference]: With dead ends: 11789 [2021-12-18 15:44:18,016 INFO L226 Difference]: Without dead ends: 11787 [2021-12-18 15:44:18,021 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 [2021-12-18 15:44:18,021 INFO L933 BasicCegarLoop]: 4781 mSDtfsCounter, 10712 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5820 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10749 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 12426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5820 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:44:18,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10749 Valid, 6106 Invalid, 12426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5820 Invalid, 2 Unknown, 0 Unchecked, 18.5s Time] [2021-12-18 15:44:18,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11787 states. [2021-12-18 15:44:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11787 to 11787. [2021-12-18 15:44:18,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 7854 states have (on average 1.307868601986249) internal successors, (10272), 8223 states have internal predecessors, (10272), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:44:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 16821 transitions. [2021-12-18 15:44:18,561 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 16821 transitions. Word has length 142 [2021-12-18 15:44:18,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:44:18,561 INFO L470 AbstractCegarLoop]: Abstraction has 11787 states and 16821 transitions. [2021-12-18 15:44:18,561 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, (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) [2021-12-18 15:44:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 16821 transitions. [2021-12-18 15:44:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-18 15:44:18,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:44:18,564 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:44:18,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 15:44:18,564 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:44:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:44:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1661046872, now seen corresponding path program 1 times [2021-12-18 15:44:18,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:44:18,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297723698] [2021-12-18 15:44:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:44:18,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:44:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:44:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:44:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:44:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:44:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:44:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:44:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:44:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:44:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:44:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:44:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:44:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:44:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:44:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:44:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:44:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:44:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:44:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:44:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:44:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:44:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:44:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:44:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:44:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:44:18,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:44:18,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297723698] [2021-12-18 15:44:18,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297723698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:44:18,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:44:18,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:44:18,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575581715] [2021-12-18 15:44:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:44:18,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:44:18,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:44:18,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:44:18,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:44:18,827 INFO L87 Difference]: Start difference. First operand 11787 states and 16821 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, (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) [2021-12-18 15:44:25,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:44:33,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:44:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:44:39,245 INFO L93 Difference]: Finished difference Result 11787 states and 16821 transitions. [2021-12-18 15:44:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:44:39,246 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, (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 148 [2021-12-18 15:44:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:44:39,284 INFO L225 Difference]: With dead ends: 11787 [2021-12-18 15:44:39,284 INFO L226 Difference]: Without dead ends: 11785 [2021-12-18 15:44:39,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:44:39,299 INFO L933 BasicCegarLoop]: 4779 mSDtfsCounter, 10706 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5818 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10742 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 12424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:44:39,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10742 Valid, 6104 Invalid, 12424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5818 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2021-12-18 15:44:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11785 states. [2021-12-18 15:44:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11785 to 11785. [2021-12-18 15:44:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11785 states, 7853 states have (on average 1.3077804660639245) internal successors, (10270), 8221 states have internal predecessors, (10270), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:44:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11785 states to 11785 states and 16819 transitions. [2021-12-18 15:44:39,910 INFO L78 Accepts]: Start accepts. Automaton has 11785 states and 16819 transitions. Word has length 148 [2021-12-18 15:44:39,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:44:39,911 INFO L470 AbstractCegarLoop]: Abstraction has 11785 states and 16819 transitions. [2021-12-18 15:44:39,911 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, (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) [2021-12-18 15:44:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 11785 states and 16819 transitions. [2021-12-18 15:44:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-18 15:44:39,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:44:39,913 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:44:39,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 15:44:39,913 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:44:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:44:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1001753990, now seen corresponding path program 1 times [2021-12-18 15:44:39,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:44:39,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378835148] [2021-12-18 15:44:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:44:39,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:44:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:44:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:44:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:44:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:44:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:44:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:44:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:44:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:44:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:44:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:44:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:44:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:44:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:44:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:44:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:44:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:44:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:44:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:44:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:44:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:44:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:44:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:44:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:44:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 15:44:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:44:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:44:40,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:44:40,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378835148] [2021-12-18 15:44:40,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378835148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:44:40,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:44:40,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:44:40,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870901458] [2021-12-18 15:44:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:44:40,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:44:40,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:44:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:44:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:44:40,227 INFO L87 Difference]: Start difference. First operand 11785 states and 16819 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, (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) [2021-12-18 15:44:46,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:44:54,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:45:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:45:00,252 INFO L93 Difference]: Finished difference Result 11785 states and 16819 transitions. [2021-12-18 15:45:00,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:45:00,252 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, (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 154 [2021-12-18 15:45:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:45:00,287 INFO L225 Difference]: With dead ends: 11785 [2021-12-18 15:45:00,288 INFO L226 Difference]: Without dead ends: 11783 [2021-12-18 15:45:00,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:45:00,295 INFO L933 BasicCegarLoop]: 4777 mSDtfsCounter, 10700 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5816 mSolverCounterSat, 6604 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10735 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 12422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5816 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:45:00,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10735 Valid, 6102 Invalid, 12422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5816 Invalid, 2 Unknown, 0 Unchecked, 19.1s Time] [2021-12-18 15:45:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11783 states. [2021-12-18 15:45:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11783 to 11783. [2021-12-18 15:45:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11783 states, 7852 states have (on average 1.3076923076923077) internal successors, (10268), 8219 states have internal predecessors, (10268), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:45:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11783 states to 11783 states and 16817 transitions. [2021-12-18 15:45:00,957 INFO L78 Accepts]: Start accepts. Automaton has 11783 states and 16817 transitions. Word has length 154 [2021-12-18 15:45:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:45:00,958 INFO L470 AbstractCegarLoop]: Abstraction has 11783 states and 16817 transitions. [2021-12-18 15:45:00,958 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, (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) [2021-12-18 15:45:00,958 INFO L276 IsEmpty]: Start isEmpty. Operand 11783 states and 16817 transitions. [2021-12-18 15:45:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-18 15:45:00,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:45:00,976 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:45:00,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 15:45:00,977 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:45:00,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:45:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1884822398, now seen corresponding path program 1 times [2021-12-18 15:45:00,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:45:00,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452443500] [2021-12-18 15:45:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:45:00,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:45:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:45:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:45:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:45:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:45:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:45:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:45:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:45:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:45:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:45:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:45:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:45:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:45:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:45:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:45:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:45:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:45:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:45:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:45:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:45:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:45:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:45:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:45:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:45:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 15:45:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 15:45:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:45:01,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:45:01,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452443500] [2021-12-18 15:45:01,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452443500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:45:01,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:45:01,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:45:01,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055917117] [2021-12-18 15:45:01,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:45:01,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:45:01,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:45:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:45:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:45:01,276 INFO L87 Difference]: Start difference. First operand 11783 states and 16817 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, (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) [2021-12-18 15:45:07,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:45:09,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:45:17,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:45:20,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:45:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:45:25,784 INFO L93 Difference]: Finished difference Result 11783 states and 16817 transitions. [2021-12-18 15:45:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:45:25,784 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, (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 160 [2021-12-18 15:45:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:45:25,855 INFO L225 Difference]: With dead ends: 11783 [2021-12-18 15:45:25,855 INFO L226 Difference]: Without dead ends: 11781 [2021-12-18 15:45:25,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:45:25,860 INFO L933 BasicCegarLoop]: 4775 mSDtfsCounter, 10694 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5812 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10728 SdHoareTripleChecker+Valid, 6100 SdHoareTripleChecker+Invalid, 12420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5812 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:45:25,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10728 Valid, 6100 Invalid, 12420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5812 Invalid, 4 Unknown, 0 Unchecked, 23.5s Time] [2021-12-18 15:45:25,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11781 states. [2021-12-18 15:45:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11781 to 11781. [2021-12-18 15:45:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 7851 states have (on average 1.30760412686282) internal successors, (10266), 8217 states have internal predecessors, (10266), 3255 states have call successors, (3255), 663 states have call predecessors, (3255), 660 states have return successors, (3294), 3177 states have call predecessors, (3294), 3253 states have call successors, (3294) [2021-12-18 15:45:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 16815 transitions. [2021-12-18 15:45:26,414 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 16815 transitions. Word has length 160 [2021-12-18 15:45:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:45:26,414 INFO L470 AbstractCegarLoop]: Abstraction has 11781 states and 16815 transitions. [2021-12-18 15:45:26,414 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, (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) [2021-12-18 15:45:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 16815 transitions. [2021-12-18 15:45:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 15:45:26,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:45:26,417 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:45:26,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 15:45:26,417 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:45:26,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:45:26,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1318803748, now seen corresponding path program 1 times [2021-12-18 15:45:26,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:45:26,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424643733] [2021-12-18 15:45:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:45:26,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:45:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:45:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:45:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:45:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:45:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:45:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:45:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:45:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:45:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:45:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:45:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:45:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:45:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:45:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:45:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:45:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:45:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 15:45:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:45:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:45:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 15:45:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:45:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:45:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:45:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 15:45:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 15:45:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:45:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 15:45:26,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:45:26,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424643733] [2021-12-18 15:45:26,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424643733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:45:26,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:45:26,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:45:26,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59186937] [2021-12-18 15:45:26,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:45:26,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:45:26,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:45:26,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:45:26,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:45:26,678 INFO L87 Difference]: Start difference. First operand 11781 states and 16815 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, (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) [2021-12-18 15:45:32,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:45:34,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:45:42,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:45:45,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:45:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:45:50,567 INFO L93 Difference]: Finished difference Result 11781 states and 16815 transitions. [2021-12-18 15:45:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:45:50,567 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, (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 166 [2021-12-18 15:45:50,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:45:50,599 INFO L225 Difference]: With dead ends: 11781 [2021-12-18 15:45:50,600 INFO L226 Difference]: Without dead ends: 11579 [2021-12-18 15:45:50,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:45:50,610 INFO L933 BasicCegarLoop]: 4774 mSDtfsCounter, 10685 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 5812 mSolverCounterSat, 6604 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10718 SdHoareTripleChecker+Valid, 6099 SdHoareTripleChecker+Invalid, 12420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6604 IncrementalHoareTripleChecker+Valid, 5812 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:45:50,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10718 Valid, 6099 Invalid, 12420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6604 Valid, 5812 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2021-12-18 15:45:50,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2021-12-18 15:45:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 11579. [2021-12-18 15:45:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11579 states, 7728 states have (on average 1.311723602484472) internal successors, (10137), 8092 states have internal predecessors, (10137), 3201 states have call successors, (3201), 639 states have call predecessors, (3201), 636 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:45:51,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11579 states to 11579 states and 16577 transitions. [2021-12-18 15:45:51,306 INFO L78 Accepts]: Start accepts. Automaton has 11579 states and 16577 transitions. Word has length 166 [2021-12-18 15:45:51,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:45:51,306 INFO L470 AbstractCegarLoop]: Abstraction has 11579 states and 16577 transitions. [2021-12-18 15:45:51,307 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, (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) [2021-12-18 15:45:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11579 states and 16577 transitions. [2021-12-18 15:45:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-18 15:45:51,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:45:51,310 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 15:45:51,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 15:45:51,310 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting rcu_read_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:45:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:45:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1819205735, now seen corresponding path program 1 times [2021-12-18 15:45:51,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:45:51,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742738958] [2021-12-18 15:45:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:45:51,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:45:51,385 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:45:51,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889993376] [2021-12-18 15:45:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:45:51,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:45:51,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:45:51,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:45:51,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 15:45:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:45:52,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 4227 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-18 15:45:52,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:45:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 138 proven. 16 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-12-18 15:45:53,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:45:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2021-12-18 15:45:54,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:45:54,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742738958] [2021-12-18 15:45:54,198 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:45:54,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889993376] [2021-12-18 15:45:54,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889993376] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-18 15:45:54,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:45:54,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-12-18 15:45:54,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924394951] [2021-12-18 15:45:54,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:45:54,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:45:54,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:45:54,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:45:54,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:45:54,200 INFO L87 Difference]: Start difference. First operand 11579 states and 16577 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 15:45:58,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:46:05,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:46:09,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:09,129 INFO L93 Difference]: Finished difference Result 11605 states and 16595 transitions. [2021-12-18 15:46:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:46:09,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 283 [2021-12-18 15:46:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:09,164 INFO L225 Difference]: With dead ends: 11605 [2021-12-18 15:46:09,164 INFO L226 Difference]: Without dead ends: 11603 [2021-12-18 15:46:09,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 555 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-18 15:46:09,172 INFO L933 BasicCegarLoop]: 5788 mSDtfsCounter, 5998 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 156 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5998 SdHoareTripleChecker+Valid, 12817 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:09,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5998 Valid, 12817 Invalid, 4538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [156 Valid, 4380 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2021-12-18 15:46:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11603 states. [2021-12-18 15:46:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11603 to 11603. [2021-12-18 15:46:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11603 states, 7745 states have (on average 1.31078114912847) internal successors, (10152), 8108 states have internal predecessors, (10152), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11603 states to 11603 states and 16592 transitions. [2021-12-18 15:46:09,761 INFO L78 Accepts]: Start accepts. Automaton has 11603 states and 16592 transitions. Word has length 283 [2021-12-18 15:46:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:09,761 INFO L470 AbstractCegarLoop]: Abstraction has 11603 states and 16592 transitions. [2021-12-18 15:46:09,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 15:46:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11603 states and 16592 transitions. [2021-12-18 15:46:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-18 15:46:09,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:09,764 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 15:46:09,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 15:46:09,988 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,SelfDestructingSolverStorable21 [2021-12-18 15:46:09,988 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:09,989 INFO L85 PathProgramCache]: Analyzing trace with hash 50016797, now seen corresponding path program 1 times [2021-12-18 15:46:09,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:09,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203133854] [2021-12-18 15:46:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:09,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:10,108 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:46:10,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998241844] [2021-12-18 15:46:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:10,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:10,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:10,109 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) [2021-12-18 15:46:10,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 15:46:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:11,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 4453 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 15:46:11,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2021-12-18 15:46:11,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:46:11,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:11,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203133854] [2021-12-18 15:46:11,708 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:46:11,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998241844] [2021-12-18 15:46:11,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998241844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:46:11,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:46:11,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 15:46:11,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419222880] [2021-12-18 15:46:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:11,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 15:46:11,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 15:46:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:46:11,710 INFO L87 Difference]: Start difference. First operand 11603 states and 16592 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:46:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:12,377 INFO L93 Difference]: Finished difference Result 23200 states and 33235 transitions. [2021-12-18 15:46:12,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 15:46:12,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 290 [2021-12-18 15:46:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:12,418 INFO L225 Difference]: With dead ends: 23200 [2021-12-18 15:46:12,418 INFO L226 Difference]: Without dead ends: 11606 [2021-12-18 15:46:12,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:46:12,469 INFO L933 BasicCegarLoop]: 5788 mSDtfsCounter, 0 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11572 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:12,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11572 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:46:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11606 states. [2021-12-18 15:46:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11606 to 11606. [2021-12-18 15:46:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11606 states, 7748 states have (on average 1.3106608156943726) internal successors, (10155), 8111 states have internal predecessors, (10155), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11606 states to 11606 states and 16595 transitions. [2021-12-18 15:46:13,093 INFO L78 Accepts]: Start accepts. Automaton has 11606 states and 16595 transitions. Word has length 290 [2021-12-18 15:46:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:13,094 INFO L470 AbstractCegarLoop]: Abstraction has 11606 states and 16595 transitions. [2021-12-18 15:46:13,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:46:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 11606 states and 16595 transitions. [2021-12-18 15:46:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-18 15:46:13,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:13,097 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 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] [2021-12-18 15:46:13,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 15:46:13,311 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,SelfDestructingSolverStorable22 [2021-12-18 15:46:13,311 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1545696808, now seen corresponding path program 1 times [2021-12-18 15:46:13,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:13,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692446946] [2021-12-18 15:46:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:13,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:13,383 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:46:13,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267063330] [2021-12-18 15:46:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:13,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:13,385 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) [2021-12-18 15:46:13,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 15:46:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:14,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 4329 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 15:46:14,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-18 15:46:15,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:46:15,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:15,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692446946] [2021-12-18 15:46:15,062 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:46:15,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267063330] [2021-12-18 15:46:15,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267063330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:46:15,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:46:15,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:46:15,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210156742] [2021-12-18 15:46:15,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:15,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:46:15,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:46:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:46:15,064 INFO L87 Difference]: Start difference. First operand 11606 states and 16595 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:46:18,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:46:22,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:46:25,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:46:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:26,358 INFO L93 Difference]: Finished difference Result 23269 states and 33358 transitions. [2021-12-18 15:46:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:46:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 265 [2021-12-18 15:46:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:26,442 INFO L225 Difference]: With dead ends: 23269 [2021-12-18 15:46:26,455 INFO L226 Difference]: Without dead ends: 11672 [2021-12-18 15:46:26,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:46:26,502 INFO L933 BasicCegarLoop]: 5796 mSDtfsCounter, 17 mSDsluCounter, 16192 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 21988 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:26,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 21988 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1213 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2021-12-18 15:46:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11672 states. [2021-12-18 15:46:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11672 to 11615. [2021-12-18 15:46:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11615 states, 7757 states have (on average 1.310300373855872) internal successors, (10164), 8120 states have internal predecessors, (10164), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11615 states to 11615 states and 16604 transitions. [2021-12-18 15:46:27,149 INFO L78 Accepts]: Start accepts. Automaton has 11615 states and 16604 transitions. Word has length 265 [2021-12-18 15:46:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:27,150 INFO L470 AbstractCegarLoop]: Abstraction has 11615 states and 16604 transitions. [2021-12-18 15:46:27,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:46:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11615 states and 16604 transitions. [2021-12-18 15:46:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-18 15:46:27,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:27,169 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 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] [2021-12-18 15:46:27,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-18 15:46:27,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:27,382 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:27,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:27,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1411683302, now seen corresponding path program 1 times [2021-12-18 15:46:27,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:27,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641839639] [2021-12-18 15:46:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:27,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:27,452 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:46:27,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644948039] [2021-12-18 15:46:27,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:27,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:27,454 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) [2021-12-18 15:46:27,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 15:46:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:28,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 4326 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 15:46:28,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-18 15:46:29,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:46:29,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:29,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641839639] [2021-12-18 15:46:29,308 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:46:29,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644948039] [2021-12-18 15:46:29,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644948039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:46:29,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:46:29,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:46:29,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779085618] [2021-12-18 15:46:29,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:29,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:46:29,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:29,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:46:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:46:29,310 INFO L87 Difference]: Start difference. First operand 11615 states and 16604 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 15:46:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:35,754 INFO L93 Difference]: Finished difference Result 23221 states and 33361 transitions. [2021-12-18 15:46:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:46:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 265 [2021-12-18 15:46:35,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:35,796 INFO L225 Difference]: With dead ends: 23221 [2021-12-18 15:46:35,796 INFO L226 Difference]: Without dead ends: 11615 [2021-12-18 15:46:35,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:46:35,846 INFO L933 BasicCegarLoop]: 5785 mSDtfsCounter, 5672 mSDsluCounter, 15088 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5677 SdHoareTripleChecker+Valid, 20873 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:35,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5677 Valid, 20873 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-18 15:46:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11615 states. [2021-12-18 15:46:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11615 to 11615. [2021-12-18 15:46:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11615 states, 7757 states have (on average 1.3099136264019595) internal successors, (10161), 8120 states have internal predecessors, (10161), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11615 states to 11615 states and 16601 transitions. [2021-12-18 15:46:36,540 INFO L78 Accepts]: Start accepts. Automaton has 11615 states and 16601 transitions. Word has length 265 [2021-12-18 15:46:36,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:36,540 INFO L470 AbstractCegarLoop]: Abstraction has 11615 states and 16601 transitions. [2021-12-18 15:46:36,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 15:46:36,541 INFO L276 IsEmpty]: Start isEmpty. Operand 11615 states and 16601 transitions. [2021-12-18 15:46:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 15:46:36,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:36,543 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-18 15:46:36,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 15:46:36,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:36,767 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:36,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash -491638827, now seen corresponding path program 1 times [2021-12-18 15:46:36,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:36,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837458046] [2021-12-18 15:46:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:36,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:36,842 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:46:36,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789255526] [2021-12-18 15:46:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:36,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:36,844 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) [2021-12-18 15:46:36,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 15:46:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:37,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 4204 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 15:46:37,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-12-18 15:46:38,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:46:38,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:38,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837458046] [2021-12-18 15:46:38,301 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:46:38,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789255526] [2021-12-18 15:46:38,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789255526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:46:38,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:46:38,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 15:46:38,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416576113] [2021-12-18 15:46:38,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:38,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:46:38,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:46:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:46:38,304 INFO L87 Difference]: Start difference. First operand 11615 states and 16601 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 15:46:38,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:38,912 INFO L93 Difference]: Finished difference Result 11615 states and 16601 transitions. [2021-12-18 15:46:38,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 15:46:38,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 244 [2021-12-18 15:46:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:38,946 INFO L225 Difference]: With dead ends: 11615 [2021-12-18 15:46:38,946 INFO L226 Difference]: Without dead ends: 11613 [2021-12-18 15:46:38,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:46:38,953 INFO L933 BasicCegarLoop]: 5784 mSDtfsCounter, 23 mSDsluCounter, 11546 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 17330 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:38,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 17330 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:46:38,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11613 states. [2021-12-18 15:46:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11613 to 11613. [2021-12-18 15:46:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11613 states, 7756 states have (on average 1.30956678700361) internal successors, (10157), 8118 states have internal predecessors, (10157), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11613 states to 11613 states and 16597 transitions. [2021-12-18 15:46:39,639 INFO L78 Accepts]: Start accepts. Automaton has 11613 states and 16597 transitions. Word has length 244 [2021-12-18 15:46:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:39,639 INFO L470 AbstractCegarLoop]: Abstraction has 11613 states and 16597 transitions. [2021-12-18 15:46:39,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 15:46:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 11613 states and 16597 transitions. [2021-12-18 15:46:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-18 15:46:39,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:39,643 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 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] [2021-12-18 15:46:39,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 15:46:39,854 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,SelfDestructingSolverStorable25 [2021-12-18 15:46:39,855 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1503174038, now seen corresponding path program 1 times [2021-12-18 15:46:39,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:39,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557639018] [2021-12-18 15:46:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:39,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:39,944 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:46:39,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712616804] [2021-12-18 15:46:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:39,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:39,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:39,945 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) [2021-12-18 15:46:39,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 15:46:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:41,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 4339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 15:46:41,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-18 15:46:41,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:46:41,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:41,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557639018] [2021-12-18 15:46:41,784 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:46:41,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712616804] [2021-12-18 15:46:41,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712616804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:46:41,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:46:41,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 15:46:41,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98832746] [2021-12-18 15:46:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:41,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 15:46:41,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:41,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 15:46:41,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:46:41,786 INFO L87 Difference]: Start difference. First operand 11613 states and 16597 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 15:46:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:46:42,438 INFO L93 Difference]: Finished difference Result 23209 states and 33337 transitions. [2021-12-18 15:46:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 15:46:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 269 [2021-12-18 15:46:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:46:42,485 INFO L225 Difference]: With dead ends: 23209 [2021-12-18 15:46:42,486 INFO L226 Difference]: Without dead ends: 11605 [2021-12-18 15:46:42,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:46:42,539 INFO L933 BasicCegarLoop]: 5780 mSDtfsCounter, 5647 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5647 SdHoareTripleChecker+Valid, 5780 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:46:42,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5647 Valid, 5780 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:46:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11605 states. [2021-12-18 15:46:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11605 to 11605. [2021-12-18 15:46:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11605 states, 7749 states have (on average 1.3090721383404311) internal successors, (10144), 8110 states have internal predecessors, (10144), 3201 states have call successors, (3201), 647 states have call predecessors, (3201), 644 states have return successors, (3239), 3124 states have call predecessors, (3239), 3199 states have call successors, (3239) [2021-12-18 15:46:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11605 states to 11605 states and 16584 transitions. [2021-12-18 15:46:43,221 INFO L78 Accepts]: Start accepts. Automaton has 11605 states and 16584 transitions. Word has length 269 [2021-12-18 15:46:43,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:46:43,222 INFO L470 AbstractCegarLoop]: Abstraction has 11605 states and 16584 transitions. [2021-12-18 15:46:43,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 15:46:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 11605 states and 16584 transitions. [2021-12-18 15:46:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-18 15:46:43,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:46:43,226 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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] [2021-12-18 15:46:43,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-18 15:46:43,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-18 15:46:43,451 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:46:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:46:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1712125053, now seen corresponding path program 1 times [2021-12-18 15:46:43,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:46:43,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894628836] [2021-12-18 15:46:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:43,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:46:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:46:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:46:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:46:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:46:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 15:46:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:46:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:46:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:46:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:46:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:46:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:46:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:46:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 15:46:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:46:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:46:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:46:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:46:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:46:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:46:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 15:46:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:46:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:46:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 15:46:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 15:46:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 15:46:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2021-12-18 15:46:44,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:46:44,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894628836] [2021-12-18 15:46:44,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894628836] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:46:44,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735883748] [2021-12-18 15:46:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:46:44,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:46:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:46:44,018 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) [2021-12-18 15:46:44,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 15:46:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:46:45,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 4086 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-18 15:46:45,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:46:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2021-12-18 15:46:45,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:46:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2021-12-18 15:46:46,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735883748] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-18 15:46:46,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-18 15:46:46,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 12 [2021-12-18 15:46:46,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063987467] [2021-12-18 15:46:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:46:46,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:46:46,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:46:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:46:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:46:46,267 INFO L87 Difference]: Start difference. First operand 11605 states and 16584 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 15:46:54,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:47:07,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:47:07,315 INFO L93 Difference]: Finished difference Result 24469 states and 35919 transitions. [2021-12-18 15:47:07,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:47:07,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 279 [2021-12-18 15:47:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:47:07,450 INFO L225 Difference]: With dead ends: 24469 [2021-12-18 15:47:07,450 INFO L226 Difference]: Without dead ends: 24467 [2021-12-18 15:47:07,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 641 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-18 15:47:07,464 INFO L933 BasicCegarLoop]: 6337 mSDtfsCounter, 12083 mSDsluCounter, 15604 mSDsCounter, 0 mSdLazyCounter, 6331 mSolverCounterSat, 3301 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12897 SdHoareTripleChecker+Valid, 21941 SdHoareTripleChecker+Invalid, 9633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3301 IncrementalHoareTripleChecker+Valid, 6331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-12-18 15:47:07,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12897 Valid, 21941 Invalid, 9633 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3301 Valid, 6331 Invalid, 1 Unknown, 0 Unchecked, 19.3s Time] [2021-12-18 15:47:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24467 states. [2021-12-18 15:47:08,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24467 to 24241. [2021-12-18 15:47:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24241 states, 16335 states have (on average 1.3136210590756046) internal successors, (21458), 17127 states have internal predecessors, (21458), 6634 states have call successors, (6634), 1249 states have call predecessors, (6634), 1261 states have return successors, (7556), 6417 states have call predecessors, (7556), 6632 states have call successors, (7556) [2021-12-18 15:47:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24241 states to 24241 states and 35648 transitions. [2021-12-18 15:47:09,023 INFO L78 Accepts]: Start accepts. Automaton has 24241 states and 35648 transitions. Word has length 279 [2021-12-18 15:47:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:47:09,023 INFO L470 AbstractCegarLoop]: Abstraction has 24241 states and 35648 transitions. [2021-12-18 15:47:09,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 15:47:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 24241 states and 35648 transitions. [2021-12-18 15:47:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-18 15:47:09,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:47:09,027 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-18 15:47:09,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-18 15:47:09,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:47:09,233 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:47:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:47:09,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1089623990, now seen corresponding path program 1 times [2021-12-18 15:47:09,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:47:09,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271506232] [2021-12-18 15:47:09,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:09,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:47:09,321 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:47:09,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600348436] [2021-12-18 15:47:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:09,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:47:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:47:09,335 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) [2021-12-18 15:47:09,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 15:47:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:10,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 4136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:47:10,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:47:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-12-18 15:47:10,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:47:10,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:47:10,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271506232] [2021-12-18 15:47:10,831 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:47:10,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600348436] [2021-12-18 15:47:10,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600348436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:47:10,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:47:10,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 15:47:10,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569112704] [2021-12-18 15:47:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:47:10,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:47:10,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:47:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:47:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:47:10,832 INFO L87 Difference]: Start difference. First operand 24241 states and 35648 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:47:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:47:12,770 INFO L93 Difference]: Finished difference Result 48938 states and 72319 transitions. [2021-12-18 15:47:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 15:47:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 255 [2021-12-18 15:47:12,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:47:12,872 INFO L225 Difference]: With dead ends: 48938 [2021-12-18 15:47:12,872 INFO L226 Difference]: Without dead ends: 24706 [2021-12-18 15:47:13,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:47:13,007 INFO L933 BasicCegarLoop]: 5888 mSDtfsCounter, 64 mSDsluCounter, 11619 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 17507 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:47:13,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 17507 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 15:47:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24706 states. [2021-12-18 15:47:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24706 to 24259. [2021-12-18 15:47:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24259 states, 16353 states have (on average 1.31382620925824) internal successors, (21485), 17145 states have internal predecessors, (21485), 6634 states have call successors, (6634), 1249 states have call predecessors, (6634), 1261 states have return successors, (7556), 6417 states have call predecessors, (7556), 6632 states have call successors, (7556) [2021-12-18 15:47:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24259 states to 24259 states and 35675 transitions. [2021-12-18 15:47:14,781 INFO L78 Accepts]: Start accepts. Automaton has 24259 states and 35675 transitions. Word has length 255 [2021-12-18 15:47:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:47:14,782 INFO L470 AbstractCegarLoop]: Abstraction has 24259 states and 35675 transitions. [2021-12-18 15:47:14,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:47:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 24259 states and 35675 transitions. [2021-12-18 15:47:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-18 15:47:14,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:47:14,785 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 15:47:14,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-18 15:47:14,999 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,SelfDestructingSolverStorable28 [2021-12-18 15:47:15,000 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:47:15,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:47:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2027122421, now seen corresponding path program 1 times [2021-12-18 15:47:15,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:47:15,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596536297] [2021-12-18 15:47:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:15,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:47:15,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:47:15,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324282617] [2021-12-18 15:47:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:15,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:47:15,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:47:15,066 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) [2021-12-18 15:47:15,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 15:47:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:16,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 4379 conjuncts, 37 conjunts are in the unsatisfiable core [2021-12-18 15:47:16,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:47:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 138 proven. 16 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-12-18 15:47:16,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:47:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2021-12-18 15:47:17,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:47:17,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596536297] [2021-12-18 15:47:17,392 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:47:17,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324282617] [2021-12-18 15:47:17,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324282617] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-18 15:47:17,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:47:17,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-12-18 15:47:17,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310175266] [2021-12-18 15:47:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:47:17,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:47:17,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:47:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:47:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:47:17,401 INFO L87 Difference]: Start difference. First operand 24259 states and 35675 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 15:47:21,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:47:23,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:47:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:47:38,334 INFO L93 Difference]: Finished difference Result 47340 states and 71233 transitions. [2021-12-18 15:47:38,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:47:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 303 [2021-12-18 15:47:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:47:38,575 INFO L225 Difference]: With dead ends: 47340 [2021-12-18 15:47:38,575 INFO L226 Difference]: Without dead ends: 47338 [2021-12-18 15:47:38,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 597 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:47:38,612 INFO L933 BasicCegarLoop]: 6089 mSDtfsCounter, 11719 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 6229 mSolverCounterSat, 3177 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12549 SdHoareTripleChecker+Valid, 20633 SdHoareTripleChecker+Invalid, 9408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3177 IncrementalHoareTripleChecker+Valid, 6229 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:47:38,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12549 Valid, 20633 Invalid, 9408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3177 Valid, 6229 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2021-12-18 15:47:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47338 states. [2021-12-18 15:47:41,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47338 to 47151. [2021-12-18 15:47:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47151 states, 32064 states have (on average 1.3135291916167664) internal successors, (42117), 33590 states have internal predecessors, (42117), 12699 states have call successors, (12699), 2376 states have call predecessors, (12699), 2377 states have return successors, (16209), 12161 states have call predecessors, (16209), 12697 states have call successors, (16209) [2021-12-18 15:47:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47151 states to 47151 states and 71025 transitions. [2021-12-18 15:47:42,105 INFO L78 Accepts]: Start accepts. Automaton has 47151 states and 71025 transitions. Word has length 303 [2021-12-18 15:47:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:47:42,105 INFO L470 AbstractCegarLoop]: Abstraction has 47151 states and 71025 transitions. [2021-12-18 15:47:42,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-18 15:47:42,106 INFO L276 IsEmpty]: Start isEmpty. Operand 47151 states and 71025 transitions. [2021-12-18 15:47:42,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-18 15:47:42,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:47:42,111 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-18 15:47:42,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-18 15:47:42,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:47:42,328 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting cpumask_nextErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:47:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:47:42,328 INFO L85 PathProgramCache]: Analyzing trace with hash 209342600, now seen corresponding path program 1 times [2021-12-18 15:47:42,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:47:42,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124194204] [2021-12-18 15:47:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:42,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:47:42,396 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:47:42,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338797710] [2021-12-18 15:47:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:42,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:47:42,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:47:42,398 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) [2021-12-18 15:47:42,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 15:47:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:43,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 4185 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 15:47:43,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:47:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-12-18 15:47:43,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:47:43,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:47:43,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124194204] [2021-12-18 15:47:43,909 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:47:43,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338797710] [2021-12-18 15:47:43,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338797710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:47:43,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:47:43,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 15:47:43,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010559685] [2021-12-18 15:47:43,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:47:43,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 15:47:43,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:47:43,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 15:47:43,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:47:43,910 INFO L87 Difference]: Start difference. First operand 47151 states and 71025 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:47:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:47:47,358 INFO L93 Difference]: Finished difference Result 88123 states and 131926 transitions. [2021-12-18 15:47:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 15:47:47,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2021-12-18 15:47:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:47:47,580 INFO L225 Difference]: With dead ends: 88123 [2021-12-18 15:47:47,580 INFO L226 Difference]: Without dead ends: 40981 [2021-12-18 15:47:48,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:47:48,137 INFO L933 BasicCegarLoop]: 5780 mSDtfsCounter, 3 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11557 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:47:48,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 11557 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:47:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40981 states. [2021-12-18 15:47:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40981 to 40963. [2021-12-18 15:47:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40963 states, 27785 states have (on average 1.3131905704516826) internal successors, (36487), 29160 states have internal predecessors, (36487), 10874 states have call successors, (10874), 2316 states have call predecessors, (10874), 2293 states have return successors, (12744), 10373 states have call predecessors, (12744), 10872 states have call successors, (12744) [2021-12-18 15:47:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40963 states to 40963 states and 60105 transitions. [2021-12-18 15:47:51,179 INFO L78 Accepts]: Start accepts. Automaton has 40963 states and 60105 transitions. Word has length 268 [2021-12-18 15:47:51,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:47:51,179 INFO L470 AbstractCegarLoop]: Abstraction has 40963 states and 60105 transitions. [2021-12-18 15:47:51,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:47:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 40963 states and 60105 transitions. [2021-12-18 15:47:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-18 15:47:51,185 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:47:51,185 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:47:51,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-18 15:47:51,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-18 15:47:51,401 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:47:51,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:47:51,401 INFO L85 PathProgramCache]: Analyzing trace with hash -107147367, now seen corresponding path program 1 times [2021-12-18 15:47:51,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:47:51,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847906268] [2021-12-18 15:47:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:47:51,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:47:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:47:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:47:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:47:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 15:47:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 15:47:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:47:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:47:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:47:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-18 15:47:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:47:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 15:47:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:47:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:47:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:47:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 15:47:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 15:47:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 15:47:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 15:47:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 15:47:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:47:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 15:47:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-18 15:47:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:47:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-18 15:47:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:47:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2021-12-18 15:47:51,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:47:51,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847906268] [2021-12-18 15:47:51,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847906268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:47:51,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:47:51,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:47:51,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454306567] [2021-12-18 15:47:51,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:47:51,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:47:51,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:47:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:47:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:47:51,795 INFO L87 Difference]: Start difference. First operand 40963 states and 60105 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 15:47:56,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:48:01,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:48:22,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:48:32,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:48:42,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:48:42,755 INFO L93 Difference]: Finished difference Result 71386 states and 105645 transitions. [2021-12-18 15:48:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:48:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 275 [2021-12-18 15:48:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:48:43,076 INFO L225 Difference]: With dead ends: 71386 [2021-12-18 15:48:43,076 INFO L226 Difference]: Without dead ends: 71384 [2021-12-18 15:48:43,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-18 15:48:43,120 INFO L933 BasicCegarLoop]: 6254 mSDtfsCounter, 7919 mSDsluCounter, 17543 mSDsCounter, 0 mSdLazyCounter, 12584 mSolverCounterSat, 3649 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8884 SdHoareTripleChecker+Valid, 23797 SdHoareTripleChecker+Invalid, 16237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3649 IncrementalHoareTripleChecker+Valid, 12584 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:48:43,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8884 Valid, 23797 Invalid, 16237 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3649 Valid, 12584 Invalid, 4 Unknown, 0 Unchecked, 46.1s Time] [2021-12-18 15:48:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71384 states. [2021-12-18 15:48:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71384 to 67335. [2021-12-18 15:48:47,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67335 states, 45835 states have (on average 1.3150430893422058) internal successors, (60275), 48069 states have internal predecessors, (60275), 17639 states have call successors, (17639), 3756 states have call predecessors, (17639), 3850 states have return successors, (20927), 16943 states have call predecessors, (20927), 17637 states have call successors, (20927) [2021-12-18 15:48:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67335 states to 67335 states and 98841 transitions. [2021-12-18 15:48:48,066 INFO L78 Accepts]: Start accepts. Automaton has 67335 states and 98841 transitions. Word has length 275 [2021-12-18 15:48:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:48:48,067 INFO L470 AbstractCegarLoop]: Abstraction has 67335 states and 98841 transitions. [2021-12-18 15:48:48,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 15:48:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 67335 states and 98841 transitions. [2021-12-18 15:48:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-12-18 15:48:48,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:48:48,074 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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] [2021-12-18 15:48:48,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-18 15:48:48,074 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:48:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:48:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1776073378, now seen corresponding path program 1 times [2021-12-18 15:48:48,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:48:48,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492403421] [2021-12-18 15:48:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:48:48,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:48:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:48:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:48:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:48:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:48:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 15:48:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:48:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:48:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 15:48:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:48:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:48:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:48:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:48:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 15:48:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:48:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:48:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:48:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:48:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:48:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:48:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 15:48:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:48:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:48:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 15:48:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 15:48:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 15:48:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 15:48:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:48,510 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2021-12-18 15:48:48,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:48:48,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492403421] [2021-12-18 15:48:48,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492403421] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:48:48,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634348057] [2021-12-18 15:48:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:48:48,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:48:48,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:48:48,512 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:48:48,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-18 15:48:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:48:49,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 4188 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-18 15:48:49,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:48:50,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-12-18 15:48:50,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-12-18 15:48:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2021-12-18 15:48:50,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:48:50,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634348057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:48:50,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:48:50,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-12-18 15:48:50,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112506009] [2021-12-18 15:48:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:48:50,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:48:50,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:48:50,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:48:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:48:50,378 INFO L87 Difference]: Start difference. First operand 67335 states and 98841 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:48:53,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:48:55,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:49:01,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:49:03,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:49:06,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 15:49:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:49:10,808 INFO L93 Difference]: Finished difference Result 135471 states and 199582 transitions. [2021-12-18 15:49:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:49:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 302 [2021-12-18 15:49:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:49:11,309 INFO L225 Difference]: With dead ends: 135471 [2021-12-18 15:49:11,310 INFO L226 Difference]: Without dead ends: 68145 [2021-12-18 15:49:11,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:49:11,853 INFO L933 BasicCegarLoop]: 5798 mSDtfsCounter, 38 mSDsluCounter, 16177 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 21 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 21975 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:49:11,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 21975 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1248 Invalid, 5 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 15:49:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68145 states. [2021-12-18 15:49:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68145 to 67461. [2021-12-18 15:49:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67461 states, 45943 states have (on average 1.315086084931328) internal successors, (60419), 48177 states have internal predecessors, (60419), 17657 states have call successors, (17657), 3756 states have call predecessors, (17657), 3850 states have return successors, (20945), 16961 states have call predecessors, (20945), 17655 states have call successors, (20945) [2021-12-18 15:49:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67461 states to 67461 states and 99021 transitions. [2021-12-18 15:49:16,560 INFO L78 Accepts]: Start accepts. Automaton has 67461 states and 99021 transitions. Word has length 302 [2021-12-18 15:49:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:49:16,561 INFO L470 AbstractCegarLoop]: Abstraction has 67461 states and 99021 transitions. [2021-12-18 15:49:16,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:49:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 67461 states and 99021 transitions. [2021-12-18 15:49:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-18 15:49:16,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:49:16,568 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 15:49:16,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-18 15:49:16,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-12-18 15:49:16,769 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 15:49:16,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:49:16,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1717448482, now seen corresponding path program 1 times [2021-12-18 15:49:16,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:49:16,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985029577] [2021-12-18 15:49:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:49:16,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:49:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:49:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:49:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:49:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:49:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 15:49:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:49:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:49:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:49:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:49:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:49:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 15:49:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:49:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 15:49:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:49:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 15:49:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 15:49:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 15:49:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 15:49:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:49:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:49:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 15:49:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:49:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 15:49:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 15:49:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:49:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 15:49:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 15:49:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 15:49:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 15:49:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2021-12-18 15:49:17,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:49:17,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985029577] [2021-12-18 15:49:17,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985029577] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:49:17,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100284547] [2021-12-18 15:49:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:49:17,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:49:17,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:49:17,393 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:49:17,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-18 15:49:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:49:18,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 4302 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 15:49:18,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:49:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2021-12-18 15:49:19,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:49:19,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100284547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:49:19,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:49:19,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-18 15:49:19,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120212021] [2021-12-18 15:49:19,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:49:19,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:49:19,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:49:19,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:49:19,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:49:19,326 INFO L87 Difference]: Start difference. First operand 67461 states and 99021 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-12-18 15:49:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:49:23,203 INFO L93 Difference]: Finished difference Result 67461 states and 99021 transitions. [2021-12-18 15:49:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 15:49:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 325 [2021-12-18 15:49:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:49:23,429 INFO L225 Difference]: With dead ends: 67461 [2021-12-18 15:49:23,430 INFO L226 Difference]: Without dead ends: 67459 [2021-12-18 15:49:23,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 422 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:49:23,459 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5631 mSDsluCounter, 5758 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5634 SdHoareTripleChecker+Valid, 11534 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:49:23,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5634 Valid, 11534 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:49:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67459 states.