./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--block--virtio_blk.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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--block--virtio_blk.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 cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 19:07:08,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 19:07:08,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 19:07:08,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 19:07:08,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 19:07:08,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 19:07:08,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 19:07:08,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 19:07:08,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 19:07:08,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 19:07:08,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 19:07:08,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 19:07:08,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 19:07:08,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 19:07:08,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 19:07:08,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 19:07:08,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 19:07:08,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 19:07:08,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 19:07:08,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 19:07:08,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 19:07:08,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 19:07:08,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 19:07:08,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 19:07:08,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 19:07:08,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 19:07:08,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 19:07:08,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 19:07:08,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 19:07:08,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 19:07:08,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 19:07:08,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 19:07:08,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 19:07:08,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 19:07:08,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 19:07:08,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 19:07:08,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 19:07:08,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 19:07:08,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 19:07:08,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 19:07:08,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 19:07:08,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 19:07:08,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 19:07:08,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 19:07:08,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 19:07:08,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 19:07:08,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 19:07:08,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 19:07:08,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 19:07:08,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 19:07:08,798 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 19:07:08,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 19:07:08,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 19:07:08,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 19:07:08,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 19:07:08,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 19:07:08,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 19:07:08,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 19:07:08,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 19:07:08,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 19:07:08,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 19:07:08,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 19:07:08,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 19:07:08,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:07:08,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 19:07:08,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 19:07:08,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 19:07:08,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 19:07:08,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 19:07:08,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 19:07:08,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 19:07:08,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 19:07:08,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 19:07:08,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2021-12-14 19:07:09,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 19:07:09,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 19:07:09,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 19:07:09,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 19:07:09,027 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 19:07:09,028 INFO L432 ainManager$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--block--virtio_blk.ko.cil.i [2021-12-14 19:07:09,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/743f2a3d9/a1df66996c914a58834a53556243d7e0/FLAG6c93bbc15 [2021-12-14 19:07:09,904 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 19:07:09,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2021-12-14 19:07:09,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/743f2a3d9/a1df66996c914a58834a53556243d7e0/FLAG6c93bbc15 [2021-12-14 19:07:10,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/743f2a3d9/a1df66996c914a58834a53556243d7e0 [2021-12-14 19:07:10,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 19:07:10,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 19:07:10,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 19:07:10,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 19:07:10,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 19:07:10,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:07:10" (1/1) ... [2021-12-14 19:07:10,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193e0055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:10, skipping insertion in model container [2021-12-14 19:07:10,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:07:10" (1/1) ... [2021-12-14 19:07:10,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 19:07:10,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 19:07:12,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300556,300569] [2021-12-14 19:07:12,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300701,300714] [2021-12-14 19:07:12,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300847,300860] [2021-12-14 19:07:12,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301012,301025] [2021-12-14 19:07:12,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301170,301183] [2021-12-14 19:07:12,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301328,301341] [2021-12-14 19:07:12,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301486,301499] [2021-12-14 19:07:12,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301646,301659] [2021-12-14 19:07:12,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301805,301818] [2021-12-14 19:07:12,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301944,301957] [2021-12-14 19:07:12,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302086,302099] [2021-12-14 19:07:12,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302235,302248] [2021-12-14 19:07:12,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302374,302387] [2021-12-14 19:07:12,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302529,302542] [2021-12-14 19:07:12,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302689,302702] [2021-12-14 19:07:12,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302840,302853] [2021-12-14 19:07:12,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302991,303004] [2021-12-14 19:07:12,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303143,303156] [2021-12-14 19:07:12,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303292,303305] [2021-12-14 19:07:12,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2021-12-14 19:07:12,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2021-12-14 19:07:12,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303746,303759] [2021-12-14 19:07:12,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303902,303915] [2021-12-14 19:07:12,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2021-12-14 19:07:12,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2021-12-14 19:07:12,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2021-12-14 19:07:12,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2021-12-14 19:07:12,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2021-12-14 19:07:12,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2021-12-14 19:07:12,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304941,304954] [2021-12-14 19:07:12,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305092,305105] [2021-12-14 19:07:12,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305247,305260] [2021-12-14 19:07:12,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305399,305412] [2021-12-14 19:07:12,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305554,305567] [2021-12-14 19:07:12,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305718,305731] [2021-12-14 19:07:12,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305874,305887] [2021-12-14 19:07:12,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306038,306051] [2021-12-14 19:07:12,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306180,306193] [2021-12-14 19:07:12,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306338,306351] [2021-12-14 19:07:12,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306505,306518] [2021-12-14 19:07:12,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306664,306677] [2021-12-14 19:07:12,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2021-12-14 19:07:12,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2021-12-14 19:07:12,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2021-12-14 19:07:12,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2021-12-14 19:07:12,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2021-12-14 19:07:12,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2021-12-14 19:07:12,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2021-12-14 19:07:12,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2021-12-14 19:07:12,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2021-12-14 19:07:12,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2021-12-14 19:07:12,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2021-12-14 19:07:12,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2021-12-14 19:07:12,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2021-12-14 19:07:12,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2021-12-14 19:07:12,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309060,309073] [2021-12-14 19:07:12,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309206,309219] [2021-12-14 19:07:12,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309349,309362] [2021-12-14 19:07:12,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309493,309506] [2021-12-14 19:07:12,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309636,309649] [2021-12-14 19:07:12,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309780,309793] [2021-12-14 19:07:12,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309921,309934] [2021-12-14 19:07:12,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310059,310072] [2021-12-14 19:07:12,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310217,310230] [2021-12-14 19:07:12,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310376,310389] [2021-12-14 19:07:12,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310532,310545] [2021-12-14 19:07:12,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310681,310694] [2021-12-14 19:07:12,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310833,310846] [2021-12-14 19:07:12,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2021-12-14 19:07:12,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2021-12-14 19:07:12,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2021-12-14 19:07:12,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2021-12-14 19:07:12,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2021-12-14 19:07:12,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2021-12-14 19:07:12,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2021-12-14 19:07:12,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2021-12-14 19:07:12,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2021-12-14 19:07:12,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2021-12-14 19:07:12,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2021-12-14 19:07:12,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2021-12-14 19:07:12,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2021-12-14 19:07:12,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2021-12-14 19:07:12,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2021-12-14 19:07:12,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2021-12-14 19:07:12,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2021-12-14 19:07:12,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2021-12-14 19:07:12,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2021-12-14 19:07:12,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2021-12-14 19:07:12,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:07:12,254 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 19:07:12,509 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--block--virtio_blk.ko.cil.i[300556,300569] [2021-12-14 19:07:12,510 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--block--virtio_blk.ko.cil.i[300701,300714] [2021-12-14 19:07:12,510 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--block--virtio_blk.ko.cil.i[300847,300860] [2021-12-14 19:07:12,510 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--block--virtio_blk.ko.cil.i[301012,301025] [2021-12-14 19:07:12,511 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--block--virtio_blk.ko.cil.i[301170,301183] [2021-12-14 19:07:12,511 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--block--virtio_blk.ko.cil.i[301328,301341] [2021-12-14 19:07:12,512 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--block--virtio_blk.ko.cil.i[301486,301499] [2021-12-14 19:07:12,512 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--block--virtio_blk.ko.cil.i[301646,301659] [2021-12-14 19:07:12,513 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--block--virtio_blk.ko.cil.i[301805,301818] [2021-12-14 19:07:12,514 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--block--virtio_blk.ko.cil.i[301944,301957] [2021-12-14 19:07:12,514 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--block--virtio_blk.ko.cil.i[302086,302099] [2021-12-14 19:07:12,514 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--block--virtio_blk.ko.cil.i[302235,302248] [2021-12-14 19:07:12,515 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--block--virtio_blk.ko.cil.i[302374,302387] [2021-12-14 19:07:12,515 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--block--virtio_blk.ko.cil.i[302529,302542] [2021-12-14 19:07:12,515 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--block--virtio_blk.ko.cil.i[302689,302702] [2021-12-14 19:07:12,516 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--block--virtio_blk.ko.cil.i[302840,302853] [2021-12-14 19:07:12,516 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--block--virtio_blk.ko.cil.i[302991,303004] [2021-12-14 19:07:12,516 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--block--virtio_blk.ko.cil.i[303143,303156] [2021-12-14 19:07:12,516 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--block--virtio_blk.ko.cil.i[303292,303305] [2021-12-14 19:07:12,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2021-12-14 19:07:12,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2021-12-14 19:07:12,518 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--block--virtio_blk.ko.cil.i[303746,303759] [2021-12-14 19:07:12,518 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--block--virtio_blk.ko.cil.i[303902,303915] [2021-12-14 19:07:12,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2021-12-14 19:07:12,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2021-12-14 19:07:12,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2021-12-14 19:07:12,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2021-12-14 19:07:12,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2021-12-14 19:07:12,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2021-12-14 19:07:12,521 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--block--virtio_blk.ko.cil.i[304941,304954] [2021-12-14 19:07:12,521 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--block--virtio_blk.ko.cil.i[305092,305105] [2021-12-14 19:07:12,521 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--block--virtio_blk.ko.cil.i[305247,305260] [2021-12-14 19:07:12,521 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--block--virtio_blk.ko.cil.i[305399,305412] [2021-12-14 19:07:12,521 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--block--virtio_blk.ko.cil.i[305554,305567] [2021-12-14 19:07:12,522 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--block--virtio_blk.ko.cil.i[305718,305731] [2021-12-14 19:07:12,522 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--block--virtio_blk.ko.cil.i[305874,305887] [2021-12-14 19:07:12,522 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--block--virtio_blk.ko.cil.i[306038,306051] [2021-12-14 19:07:12,523 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--block--virtio_blk.ko.cil.i[306180,306193] [2021-12-14 19:07:12,523 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--block--virtio_blk.ko.cil.i[306338,306351] [2021-12-14 19:07:12,523 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--block--virtio_blk.ko.cil.i[306505,306518] [2021-12-14 19:07:12,523 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--block--virtio_blk.ko.cil.i[306664,306677] [2021-12-14 19:07:12,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2021-12-14 19:07:12,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2021-12-14 19:07:12,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2021-12-14 19:07:12,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2021-12-14 19:07:12,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2021-12-14 19:07:12,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2021-12-14 19:07:12,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2021-12-14 19:07:12,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2021-12-14 19:07:12,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2021-12-14 19:07:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2021-12-14 19:07:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2021-12-14 19:07:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2021-12-14 19:07:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2021-12-14 19:07:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2021-12-14 19:07:12,527 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--block--virtio_blk.ko.cil.i[309060,309073] [2021-12-14 19:07:12,527 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--block--virtio_blk.ko.cil.i[309206,309219] [2021-12-14 19:07:12,527 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--block--virtio_blk.ko.cil.i[309349,309362] [2021-12-14 19:07:12,527 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--block--virtio_blk.ko.cil.i[309493,309506] [2021-12-14 19:07:12,528 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--block--virtio_blk.ko.cil.i[309636,309649] [2021-12-14 19:07:12,528 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--block--virtio_blk.ko.cil.i[309780,309793] [2021-12-14 19:07:12,528 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--block--virtio_blk.ko.cil.i[309921,309934] [2021-12-14 19:07:12,529 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--block--virtio_blk.ko.cil.i[310059,310072] [2021-12-14 19:07:12,529 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--block--virtio_blk.ko.cil.i[310217,310230] [2021-12-14 19:07:12,529 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--block--virtio_blk.ko.cil.i[310376,310389] [2021-12-14 19:07:12,530 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--block--virtio_blk.ko.cil.i[310532,310545] [2021-12-14 19:07:12,530 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--block--virtio_blk.ko.cil.i[310681,310694] [2021-12-14 19:07:12,533 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--block--virtio_blk.ko.cil.i[310833,310846] [2021-12-14 19:07:12,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2021-12-14 19:07:12,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2021-12-14 19:07:12,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2021-12-14 19:07:12,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2021-12-14 19:07:12,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2021-12-14 19:07:12,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2021-12-14 19:07:12,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2021-12-14 19:07:12,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2021-12-14 19:07:12,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2021-12-14 19:07:12,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2021-12-14 19:07:12,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2021-12-14 19:07:12,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2021-12-14 19:07:12,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2021-12-14 19:07:12,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2021-12-14 19:07:12,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2021-12-14 19:07:12,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2021-12-14 19:07:12,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2021-12-14 19:07:12,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2021-12-14 19:07:12,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2021-12-14 19:07:12,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2021-12-14 19:07:12,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:07:12,700 INFO L208 MainTranslator]: Completed translation [2021-12-14 19:07:12,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12 WrapperNode [2021-12-14 19:07:12,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 19:07:12,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 19:07:12,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 19:07:12,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 19:07:12,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:12,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:12,934 INFO L137 Inliner]: procedures = 554, calls = 1441, calls flagged for inlining = 247, calls inlined = 157, statements flattened = 3174 [2021-12-14 19:07:12,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 19:07:12,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 19:07:12,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 19:07:12,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 19:07:12,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:12,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:12,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:12,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:13,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:13,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:13,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:13,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 19:07:13,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 19:07:13,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 19:07:13,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 19:07:13,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (1/1) ... [2021-12-14 19:07:13,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:07:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 19:07:13,139 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) [2021-12-14 19:07:13,163 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 [2021-12-14 19:07:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-12-14 19:07:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-12-14 19:07:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-14 19:07:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-14 19:07:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 19:07:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 19:07:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-14 19:07:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-14 19:07:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2021-12-14 19:07:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2021-12-14 19:07:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:07:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:07:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-14 19:07:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-14 19:07:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2021-12-14 19:07:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2021-12-14 19:07:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-14 19:07:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-14 19:07:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2021-12-14 19:07:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2021-12-14 19:07:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 19:07:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 19:07:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 19:07:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 19:07:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-14 19:07:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-14 19:07:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 19:07:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2021-12-14 19:07:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2021-12-14 19:07:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 19:07:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 19:07:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-14 19:07:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-14 19:07:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2021-12-14 19:07:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure string_get_size [2021-12-14 19:07:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 19:07:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-12-14 19:07:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-12-14 19:07:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2021-12-14 19:07:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2021-12-14 19:07:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 19:07:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-12-14 19:07:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-12-14 19:07:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-14 19:07:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-14 19:07:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-12-14 19:07:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-12-14 19:07:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 19:07:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 19:07:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2021-12-14 19:07:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_flush [2021-12-14 19:07:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-14 19:07:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-14 19:07:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2021-12-14 19:07:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_simple_remove [2021-12-14 19:07:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 19:07:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-14 19:07:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-14 19:07:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-14 19:07:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-14 19:07:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-14 19:07:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-14 19:07:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 19:07:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 19:07:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-14 19:07:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-14 19:07:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-14 19:07:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-14 19:07:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-14 19:07:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-14 19:07:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2021-12-14 19:07:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2021-12-14 19:07:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 19:07:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2021-12-14 19:07:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2021-12-14 19:07:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 19:07:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 19:07:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 19:07:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 19:07:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-14 19:07:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-14 19:07:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:07:13,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:07:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-12-14 19:07:13,188 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-12-14 19:07:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2021-12-14 19:07:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2021-12-14 19:07:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2021-12-14 19:07:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2021-12-14 19:07:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-14 19:07:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-14 19:07:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 19:07:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 19:07:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 19:07:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 19:07:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 19:07:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 19:07:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 19:07:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 19:07:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:07:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:07:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2021-12-14 19:07:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2021-12-14 19:07:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-14 19:07:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-14 19:07:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-14 19:07:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-14 19:07:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-12-14 19:07:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-12-14 19:07:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-14 19:07:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-14 19:07:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-14 19:07:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-14 19:07:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2021-12-14 19:07:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2021-12-14 19:07:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-14 19:07:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-14 19:07:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-12-14 19:07:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-12-14 19:07:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-14 19:07:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-14 19:07:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2021-12-14 19:07:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2021-12-14 19:07:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 19:07:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-14 19:07:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-14 19:07:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2021-12-14 19:07:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2021-12-14 19:07:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-12-14 19:07:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-12-14 19:07:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 19:07:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 19:07:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2021-12-14 19:07:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2021-12-14 19:07:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-14 19:07:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-14 19:07:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 19:07:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 19:07:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2021-12-14 19:07:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2021-12-14 19:07:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-12-14 19:07:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-12-14 19:07:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-14 19:07:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-14 19:07:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-14 19:07:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-14 19:07:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-14 19:07:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-14 19:07:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-14 19:07:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-14 19:07:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 19:07:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 19:07:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 19:07:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-14 19:07:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-14 19:07:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 19:07:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 19:07:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2021-12-14 19:07:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2021-12-14 19:07:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-14 19:07:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-14 19:07:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 19:07:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 19:07:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2021-12-14 19:07:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2021-12-14 19:07:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 19:07:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 19:07:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-14 19:07:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-14 19:07:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-14 19:07:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-14 19:07:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2021-12-14 19:07:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2021-12-14 19:07:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 19:07:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2021-12-14 19:07:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2021-12-14 19:07:13,806 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 19:07:13,809 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 19:07:14,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 19:07:15,395 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 19:07:15,413 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 19:07:15,414 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-14 19:07:15,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:07:15 BoogieIcfgContainer [2021-12-14 19:07:15,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 19:07:15,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 19:07:15,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 19:07:15,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 19:07:15,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:07:10" (1/3) ... [2021-12-14 19:07:15,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e26a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:07:15, skipping insertion in model container [2021-12-14 19:07:15,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:12" (2/3) ... [2021-12-14 19:07:15,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e26a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:07:15, skipping insertion in model container [2021-12-14 19:07:15,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:07:15" (3/3) ... [2021-12-14 19:07:15,424 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2021-12-14 19:07:15,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 19:07:15,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-12-14 19:07:15,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 19:07:15,488 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 [2021-12-14 19:07:15,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-12-14 19:07:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 1211 states, 829 states have (on average 1.284680337756333) internal successors, (1065), 870 states have internal predecessors, (1065), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) [2021-12-14 19:07:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-14 19:07:15,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:15,536 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] [2021-12-14 19:07:15,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:15,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:15,541 INFO L85 PathProgramCache]: Analyzing trace with hash -923090692, now seen corresponding path program 1 times [2021-12-14 19:07:15,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:15,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113678503] [2021-12-14 19:07:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:15,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:16,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:16,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113678503] [2021-12-14 19:07:16,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113678503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:16,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:16,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:16,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226740723] [2021-12-14 19:07:16,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:16,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:16,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:16,080 INFO L87 Difference]: Start difference. First operand has 1211 states, 829 states have (on average 1.284680337756333) internal successors, (1065), 870 states have internal predecessors, (1065), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) 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) [2021-12-14 19:07:17,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:17,985 INFO L93 Difference]: Finished difference Result 2254 states and 3109 transitions. [2021-12-14 19:07:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:17,989 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 [2021-12-14 19:07:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:18,006 INFO L225 Difference]: With dead ends: 2254 [2021-12-14 19:07:18,006 INFO L226 Difference]: Without dead ends: 1063 [2021-12-14 19:07:18,016 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 [2021-12-14 19:07:18,019 INFO L933 BasicCegarLoop]: 1267 mSDtfsCounter, 2027 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:18,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2173 Valid, 2777 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 19:07:18,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-12-14 19:07:18,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1063. [2021-12-14 19:07:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 718 states have (on average 1.2103064066852367) internal successors, (869), 767 states have internal predecessors, (869), 236 states have call successors, (236), 79 states have call predecessors, (236), 78 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2021-12-14 19:07:18,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1339 transitions. [2021-12-14 19:07:18,131 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1339 transitions. Word has length 50 [2021-12-14 19:07:18,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:18,137 INFO L470 AbstractCegarLoop]: Abstraction has 1063 states and 1339 transitions. [2021-12-14 19:07:18,138 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) [2021-12-14 19:07:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1339 transitions. [2021-12-14 19:07:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-14 19:07:18,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:18,141 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] [2021-12-14 19:07:18,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 19:07:18,141 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:18,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:18,142 INFO L85 PathProgramCache]: Analyzing trace with hash -376852613, now seen corresponding path program 1 times [2021-12-14 19:07:18,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:18,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450639514] [2021-12-14 19:07:18,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:18,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:18,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:18,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450639514] [2021-12-14 19:07:18,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450639514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:18,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:18,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:18,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047602443] [2021-12-14 19:07:18,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:18,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:18,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:18,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:18,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:18,302 INFO L87 Difference]: Start difference. First operand 1063 states and 1339 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) [2021-12-14 19:07:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:21,067 INFO L93 Difference]: Finished difference Result 2053 states and 2596 transitions. [2021-12-14 19:07:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 19:07:21,067 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 [2021-12-14 19:07:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:21,079 INFO L225 Difference]: With dead ends: 2053 [2021-12-14 19:07:21,079 INFO L226 Difference]: Without dead ends: 2051 [2021-12-14 19:07:21,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-14 19:07:21,081 INFO L933 BasicCegarLoop]: 1691 mSDtfsCounter, 2683 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 1297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2813 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1297 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:21,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2813 Valid, 4493 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1297 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 19:07:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2021-12-14 19:07:21,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1858. [2021-12-14 19:07:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1280 states have (on average 1.2125) internal successors, (1552), 1348 states have internal predecessors, (1552), 413 states have call successors, (413), 135 states have call predecessors, (413), 134 states have return successors, (426), 404 states have call predecessors, (426), 411 states have call successors, (426) [2021-12-14 19:07:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2391 transitions. [2021-12-14 19:07:21,170 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2391 transitions. Word has length 56 [2021-12-14 19:07:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:21,171 INFO L470 AbstractCegarLoop]: Abstraction has 1858 states and 2391 transitions. [2021-12-14 19:07:21,171 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) [2021-12-14 19:07:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2391 transitions. [2021-12-14 19:07:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-14 19:07:21,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:21,179 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] [2021-12-14 19:07:21,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 19:07:21,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:21,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:21,180 INFO L85 PathProgramCache]: Analyzing trace with hash -721796001, now seen corresponding path program 1 times [2021-12-14 19:07:21,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:21,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51087435] [2021-12-14 19:07:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:21,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:21,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:21,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51087435] [2021-12-14 19:07:21,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51087435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:21,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:21,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:21,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340388385] [2021-12-14 19:07:21,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:21,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:21,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:21,362 INFO L87 Difference]: Start difference. First operand 1858 states and 2391 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) [2021-12-14 19:07:23,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:23,035 INFO L93 Difference]: Finished difference Result 1858 states and 2391 transitions. [2021-12-14 19:07:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:23,036 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 [2021-12-14 19:07:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:23,050 INFO L225 Difference]: With dead ends: 1858 [2021-12-14 19:07:23,050 INFO L226 Difference]: Without dead ends: 1856 [2021-12-14 19:07:23,052 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 [2021-12-14 19:07:23,054 INFO L933 BasicCegarLoop]: 1250 mSDtfsCounter, 1996 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:23,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2133 Valid, 2746 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 19:07:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2021-12-14 19:07:23,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1856. [2021-12-14 19:07:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1279 states have (on average 1.2118842845973417) internal successors, (1550), 1346 states have internal predecessors, (1550), 413 states have call successors, (413), 135 states have call predecessors, (413), 134 states have return successors, (426), 404 states have call predecessors, (426), 411 states have call successors, (426) [2021-12-14 19:07:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2389 transitions. [2021-12-14 19:07:23,216 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2389 transitions. Word has length 62 [2021-12-14 19:07:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:23,217 INFO L470 AbstractCegarLoop]: Abstraction has 1856 states and 2389 transitions. [2021-12-14 19:07:23,217 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) [2021-12-14 19:07:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2389 transitions. [2021-12-14 19:07:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-14 19:07:23,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:23,220 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] [2021-12-14 19:07:23,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 19:07:23,221 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1804222514, now seen corresponding path program 1 times [2021-12-14 19:07:23,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:23,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800270118] [2021-12-14 19:07:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:23,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:23,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:23,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800270118] [2021-12-14 19:07:23,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800270118] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:23,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:23,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:23,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550994123] [2021-12-14 19:07:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:23,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:23,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:23,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:23,502 INFO L87 Difference]: Start difference. First operand 1856 states and 2389 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) [2021-12-14 19:07:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:25,487 INFO L93 Difference]: Finished difference Result 2421 states and 3037 transitions. [2021-12-14 19:07:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 19:07:25,488 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 [2021-12-14 19:07:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:25,500 INFO L225 Difference]: With dead ends: 2421 [2021-12-14 19:07:25,500 INFO L226 Difference]: Without dead ends: 2419 [2021-12-14 19:07:25,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-14 19:07:25,504 INFO L933 BasicCegarLoop]: 1309 mSDtfsCounter, 2433 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 948 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:25,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2574 Valid, 3032 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [948 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 19:07:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2021-12-14 19:07:25,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2370. [2021-12-14 19:07:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 1631 states have (on average 1.2035561005518087) internal successors, (1963), 1702 states have internal predecessors, (1963), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3004 transitions. [2021-12-14 19:07:25,608 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3004 transitions. Word has length 68 [2021-12-14 19:07:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:25,610 INFO L470 AbstractCegarLoop]: Abstraction has 2370 states and 3004 transitions. [2021-12-14 19:07:25,610 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) [2021-12-14 19:07:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3004 transitions. [2021-12-14 19:07:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 19:07:25,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:25,612 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] [2021-12-14 19:07:25,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 19:07:25,612 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:25,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:25,613 INFO L85 PathProgramCache]: Analyzing trace with hash 780461203, now seen corresponding path program 1 times [2021-12-14 19:07:25,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:25,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810122037] [2021-12-14 19:07:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:25,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:25,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:25,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810122037] [2021-12-14 19:07:25,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810122037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:25,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:25,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:25,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183066416] [2021-12-14 19:07:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:25,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:25,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:25,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:25,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:25,783 INFO L87 Difference]: Start difference. First operand 2370 states and 3004 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) [2021-12-14 19:07:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:27,307 INFO L93 Difference]: Finished difference Result 2370 states and 3004 transitions. [2021-12-14 19:07:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:27,307 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 [2021-12-14 19:07:27,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:27,319 INFO L225 Difference]: With dead ends: 2370 [2021-12-14 19:07:27,319 INFO L226 Difference]: Without dead ends: 2368 [2021-12-14 19:07:27,320 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 [2021-12-14 19:07:27,321 INFO L933 BasicCegarLoop]: 1249 mSDtfsCounter, 1991 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:27,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2131 Valid, 2745 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 19:07:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-12-14 19:07:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2021-12-14 19:07:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 1630 states have (on average 1.2024539877300613) internal successors, (1960), 1700 states have internal predecessors, (1960), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3001 transitions. [2021-12-14 19:07:27,549 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3001 transitions. Word has length 74 [2021-12-14 19:07:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:27,550 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 3001 transitions. [2021-12-14 19:07:27,550 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) [2021-12-14 19:07:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3001 transitions. [2021-12-14 19:07:27,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-14 19:07:27,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:27,552 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] [2021-12-14 19:07:27,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 19:07:27,553 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash 913568252, now seen corresponding path program 1 times [2021-12-14 19:07:27,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:27,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075772493] [2021-12-14 19:07:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:27,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:27,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:27,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075772493] [2021-12-14 19:07:27,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075772493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:27,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:27,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:27,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74868604] [2021-12-14 19:07:27,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:27,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:27,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:27,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:27,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:27,763 INFO L87 Difference]: Start difference. First operand 2368 states and 3001 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) [2021-12-14 19:07:29,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:29,175 INFO L93 Difference]: Finished difference Result 2368 states and 3001 transitions. [2021-12-14 19:07:29,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:29,176 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 [2021-12-14 19:07:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:29,186 INFO L225 Difference]: With dead ends: 2368 [2021-12-14 19:07:29,187 INFO L226 Difference]: Without dead ends: 2366 [2021-12-14 19:07:29,188 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 [2021-12-14 19:07:29,188 INFO L933 BasicCegarLoop]: 1247 mSDtfsCounter, 1985 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:29,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2124 Valid, 2743 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 19:07:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-12-14 19:07:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-12-14 19:07:29,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 1629 states have (on average 1.2013505217925107) internal successors, (1957), 1698 states have internal predecessors, (1957), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 2998 transitions. [2021-12-14 19:07:29,274 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 2998 transitions. Word has length 80 [2021-12-14 19:07:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:29,274 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 2998 transitions. [2021-12-14 19:07:29,275 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) [2021-12-14 19:07:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 2998 transitions. [2021-12-14 19:07:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 19:07:29,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:29,276 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] [2021-12-14 19:07:29,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 19:07:29,277 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:29,277 INFO L85 PathProgramCache]: Analyzing trace with hash -437614153, now seen corresponding path program 1 times [2021-12-14 19:07:29,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:29,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529176835] [2021-12-14 19:07:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:29,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:29,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:29,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529176835] [2021-12-14 19:07:29,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529176835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:29,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:29,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:29,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683855535] [2021-12-14 19:07:29,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:29,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:29,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:29,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:29,439 INFO L87 Difference]: Start difference. First operand 2366 states and 2998 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) [2021-12-14 19:07:30,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:30,810 INFO L93 Difference]: Finished difference Result 2366 states and 2998 transitions. [2021-12-14 19:07:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:30,810 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 [2021-12-14 19:07:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:30,821 INFO L225 Difference]: With dead ends: 2366 [2021-12-14 19:07:30,822 INFO L226 Difference]: Without dead ends: 2364 [2021-12-14 19:07:30,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-14 19:07:30,823 INFO L933 BasicCegarLoop]: 1245 mSDtfsCounter, 1979 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:30,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2117 Valid, 2741 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 19:07:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2021-12-14 19:07:30,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2364. [2021-12-14 19:07:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2364 states, 1628 states have (on average 1.2002457002457003) internal successors, (1954), 1696 states have internal predecessors, (1954), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:30,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 2995 transitions. [2021-12-14 19:07:30,927 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 2995 transitions. Word has length 86 [2021-12-14 19:07:30,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:30,927 INFO L470 AbstractCegarLoop]: Abstraction has 2364 states and 2995 transitions. [2021-12-14 19:07:30,927 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) [2021-12-14 19:07:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 2995 transitions. [2021-12-14 19:07:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-14 19:07:30,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:30,929 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] [2021-12-14 19:07:30,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 19:07:30,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:30,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash -656719705, now seen corresponding path program 1 times [2021-12-14 19:07:30,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:30,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838679812] [2021-12-14 19:07:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:30,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:31,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:31,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838679812] [2021-12-14 19:07:31,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838679812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:31,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:31,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:31,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795993226] [2021-12-14 19:07:31,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:31,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:31,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:31,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:31,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:31,096 INFO L87 Difference]: Start difference. First operand 2364 states and 2995 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) [2021-12-14 19:07:32,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:32,352 INFO L93 Difference]: Finished difference Result 2364 states and 2995 transitions. [2021-12-14 19:07:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:32,353 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 [2021-12-14 19:07:32,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:32,363 INFO L225 Difference]: With dead ends: 2364 [2021-12-14 19:07:32,363 INFO L226 Difference]: Without dead ends: 2362 [2021-12-14 19:07:32,364 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 [2021-12-14 19:07:32,365 INFO L933 BasicCegarLoop]: 1243 mSDtfsCounter, 1977 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:32,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2114 Valid, 2739 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 19:07:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-12-14 19:07:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2021-12-14 19:07:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 1627 states have (on average 1.199139520590043) internal successors, (1951), 1694 states have internal predecessors, (1951), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2992 transitions. [2021-12-14 19:07:32,468 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2992 transitions. Word has length 92 [2021-12-14 19:07:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:32,469 INFO L470 AbstractCegarLoop]: Abstraction has 2362 states and 2992 transitions. [2021-12-14 19:07:32,469 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) [2021-12-14 19:07:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2992 transitions. [2021-12-14 19:07:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 19:07:32,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:32,471 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] [2021-12-14 19:07:32,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 19:07:32,471 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash 252701098, now seen corresponding path program 1 times [2021-12-14 19:07:32,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47396900] [2021-12-14 19:07:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:32,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:32,605 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:32,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:32,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47396900] [2021-12-14 19:07:32,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47396900] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:32,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:32,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:32,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717876242] [2021-12-14 19:07:32,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:32,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:32,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:32,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:32,608 INFO L87 Difference]: Start difference. First operand 2362 states and 2992 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) [2021-12-14 19:07:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:33,934 INFO L93 Difference]: Finished difference Result 2362 states and 2992 transitions. [2021-12-14 19:07:33,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:33,937 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 [2021-12-14 19:07:33,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:33,951 INFO L225 Difference]: With dead ends: 2362 [2021-12-14 19:07:33,952 INFO L226 Difference]: Without dead ends: 2360 [2021-12-14 19:07:33,953 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 [2021-12-14 19:07:33,953 INFO L933 BasicCegarLoop]: 1241 mSDtfsCounter, 1965 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 2737 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:33,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2102 Valid, 2737 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 19:07:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2021-12-14 19:07:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2360. [2021-12-14 19:07:34,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 1626 states have (on average 1.1980319803198032) internal successors, (1948), 1692 states have internal predecessors, (1948), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 2989 transitions. [2021-12-14 19:07:34,067 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 2989 transitions. Word has length 94 [2021-12-14 19:07:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:34,067 INFO L470 AbstractCegarLoop]: Abstraction has 2360 states and 2989 transitions. [2021-12-14 19:07:34,068 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) [2021-12-14 19:07:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 2989 transitions. [2021-12-14 19:07:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-14 19:07:34,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:34,070 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] [2021-12-14 19:07:34,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 19:07:34,071 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:34,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:34,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1323316452, now seen corresponding path program 1 times [2021-12-14 19:07:34,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:34,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179158231] [2021-12-14 19:07:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:34,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:34,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:34,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179158231] [2021-12-14 19:07:34,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179158231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:34,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:34,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:34,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757534488] [2021-12-14 19:07:34,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:34,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:34,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:34,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:34,258 INFO L87 Difference]: Start difference. First operand 2360 states and 2989 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) [2021-12-14 19:07:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:35,466 INFO L93 Difference]: Finished difference Result 2360 states and 2989 transitions. [2021-12-14 19:07:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:35,466 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 [2021-12-14 19:07:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:35,477 INFO L225 Difference]: With dead ends: 2360 [2021-12-14 19:07:35,478 INFO L226 Difference]: Without dead ends: 2358 [2021-12-14 19:07:35,479 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 [2021-12-14 19:07:35,479 INFO L933 BasicCegarLoop]: 1239 mSDtfsCounter, 1961 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:35,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2097 Valid, 2735 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 19:07:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2021-12-14 19:07:35,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2358. [2021-12-14 19:07:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1625 states have (on average 1.196923076923077) internal successors, (1945), 1690 states have internal predecessors, (1945), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 2986 transitions. [2021-12-14 19:07:35,608 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 2986 transitions. Word has length 100 [2021-12-14 19:07:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:35,611 INFO L470 AbstractCegarLoop]: Abstraction has 2358 states and 2986 transitions. [2021-12-14 19:07:35,612 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) [2021-12-14 19:07:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 2986 transitions. [2021-12-14 19:07:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-14 19:07:35,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:35,616 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] [2021-12-14 19:07:35,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 19:07:35,617 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash -235668590, now seen corresponding path program 1 times [2021-12-14 19:07:35,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:35,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718948627] [2021-12-14 19:07:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:35,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 19:07:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:35,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:35,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718948627] [2021-12-14 19:07:35,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718948627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:35,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:35,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:35,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957965033] [2021-12-14 19:07:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:35,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:35,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:35,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:35,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:35,783 INFO L87 Difference]: Start difference. First operand 2358 states and 2986 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) [2021-12-14 19:07:37,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:37,281 INFO L93 Difference]: Finished difference Result 2358 states and 2986 transitions. [2021-12-14 19:07:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:37,282 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 [2021-12-14 19:07:37,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:37,293 INFO L225 Difference]: With dead ends: 2358 [2021-12-14 19:07:37,293 INFO L226 Difference]: Without dead ends: 2356 [2021-12-14 19:07:37,294 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 [2021-12-14 19:07:37,295 INFO L933 BasicCegarLoop]: 1237 mSDtfsCounter, 1955 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:37,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2090 Valid, 2733 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 19:07:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2021-12-14 19:07:37,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2021-12-14 19:07:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1624 states have (on average 1.1958128078817734) internal successors, (1942), 1688 states have internal predecessors, (1942), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 2983 transitions. [2021-12-14 19:07:37,412 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 2983 transitions. Word has length 106 [2021-12-14 19:07:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:37,412 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 2983 transitions. [2021-12-14 19:07:37,413 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) [2021-12-14 19:07:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 2983 transitions. [2021-12-14 19:07:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-14 19:07:37,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:37,415 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] [2021-12-14 19:07:37,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 19:07:37,415 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1421295643, now seen corresponding path program 1 times [2021-12-14 19:07:37,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:37,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646686641] [2021-12-14 19:07:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:37,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 19:07:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:07:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:37,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:37,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646686641] [2021-12-14 19:07:37,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646686641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:37,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:37,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:37,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270204576] [2021-12-14 19:07:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:37,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:37,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:37,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:37,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:37,592 INFO L87 Difference]: Start difference. First operand 2356 states and 2983 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) [2021-12-14 19:07:38,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:38,876 INFO L93 Difference]: Finished difference Result 2356 states and 2983 transitions. [2021-12-14 19:07:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:38,876 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 [2021-12-14 19:07:38,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:38,886 INFO L225 Difference]: With dead ends: 2356 [2021-12-14 19:07:38,886 INFO L226 Difference]: Without dead ends: 2354 [2021-12-14 19:07:38,887 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 [2021-12-14 19:07:38,888 INFO L933 BasicCegarLoop]: 1235 mSDtfsCounter, 1949 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:38,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2083 Valid, 2731 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 19:07:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2021-12-14 19:07:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2354. [2021-12-14 19:07:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2354 states, 1623 states have (on average 1.1947011706715958) internal successors, (1939), 1686 states have internal predecessors, (1939), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2354 states to 2354 states and 2980 transitions. [2021-12-14 19:07:38,990 INFO L78 Accepts]: Start accepts. Automaton has 2354 states and 2980 transitions. Word has length 112 [2021-12-14 19:07:38,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:38,991 INFO L470 AbstractCegarLoop]: Abstraction has 2354 states and 2980 transitions. [2021-12-14 19:07:38,991 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) [2021-12-14 19:07:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2354 states and 2980 transitions. [2021-12-14 19:07:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-14 19:07:38,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:38,993 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] [2021-12-14 19:07:38,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 19:07:38,993 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1546267020, now seen corresponding path program 1 times [2021-12-14 19:07:38,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:38,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917809629] [2021-12-14 19:07:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:38,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 19:07:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:07:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 19:07:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:39,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:39,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917809629] [2021-12-14 19:07:39,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917809629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:39,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:39,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:39,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971064171] [2021-12-14 19:07:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:39,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:39,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:39,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:39,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:39,192 INFO L87 Difference]: Start difference. First operand 2354 states and 2980 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) [2021-12-14 19:07:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:40,436 INFO L93 Difference]: Finished difference Result 2354 states and 2980 transitions. [2021-12-14 19:07:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:40,436 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 [2021-12-14 19:07:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:40,446 INFO L225 Difference]: With dead ends: 2354 [2021-12-14 19:07:40,446 INFO L226 Difference]: Without dead ends: 2352 [2021-12-14 19:07:40,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-14 19:07:40,448 INFO L933 BasicCegarLoop]: 1233 mSDtfsCounter, 1943 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:40,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 2729 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 19:07:40,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2021-12-14 19:07:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2021-12-14 19:07:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1622 states have (on average 1.1935881627620222) internal successors, (1936), 1684 states have internal predecessors, (1936), 514 states have call successors, (514), 196 states have call predecessors, (514), 195 states have return successors, (527), 503 states have call predecessors, (527), 512 states have call successors, (527) [2021-12-14 19:07:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 2977 transitions. [2021-12-14 19:07:40,572 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 2977 transitions. Word has length 118 [2021-12-14 19:07:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:40,573 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 2977 transitions. [2021-12-14 19:07:40,573 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) [2021-12-14 19:07:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 2977 transitions. [2021-12-14 19:07:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-14 19:07:40,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:40,575 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:40,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 19:07:40,576 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1462377836, now seen corresponding path program 1 times [2021-12-14 19:07:40,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:40,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585598474] [2021-12-14 19:07:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:40,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 19:07:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 19:07:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:07:40,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:40,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585598474] [2021-12-14 19:07:40,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585598474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:40,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:40,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 19:07:40,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340742705] [2021-12-14 19:07:40,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:40,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 19:07:40,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:40,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 19:07:40,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 19:07:40,765 INFO L87 Difference]: Start difference. First operand 2352 states and 2977 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:41,962 INFO L93 Difference]: Finished difference Result 5716 states and 7519 transitions. [2021-12-14 19:07:41,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 19:07:41,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 153 [2021-12-14 19:07:41,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:41,991 INFO L225 Difference]: With dead ends: 5716 [2021-12-14 19:07:41,992 INFO L226 Difference]: Without dead ends: 3390 [2021-12-14 19:07:42,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 19:07:42,002 INFO L933 BasicCegarLoop]: 1906 mSDtfsCounter, 683 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:42,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 3975 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 19:07:42,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2021-12-14 19:07:42,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2358. [2021-12-14 19:07:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1626 states have (on average 1.1931119311193112) internal successors, (1940), 1690 states have internal predecessors, (1940), 514 states have call successors, (514), 196 states have call predecessors, (514), 197 states have return successors, (536), 505 states have call predecessors, (536), 512 states have call successors, (536) [2021-12-14 19:07:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 2990 transitions. [2021-12-14 19:07:42,171 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 2990 transitions. Word has length 153 [2021-12-14 19:07:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:42,172 INFO L470 AbstractCegarLoop]: Abstraction has 2358 states and 2990 transitions. [2021-12-14 19:07:42,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 2990 transitions. [2021-12-14 19:07:42,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-14 19:07:42,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:42,176 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:42,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 19:07:42,176 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash -531766870, now seen corresponding path program 1 times [2021-12-14 19:07:42,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:42,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138003052] [2021-12-14 19:07:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:42,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 19:07:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 19:07:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:42,487 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:07:42,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:42,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138003052] [2021-12-14 19:07:42,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138003052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:42,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:42,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:42,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490585140] [2021-12-14 19:07:42,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:42,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:42,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:42,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:42,489 INFO L87 Difference]: Start difference. First operand 2358 states and 2990 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 19:07:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:43,610 INFO L93 Difference]: Finished difference Result 4843 states and 6176 transitions. [2021-12-14 19:07:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:07:43,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 153 [2021-12-14 19:07:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:43,620 INFO L225 Difference]: With dead ends: 4843 [2021-12-14 19:07:43,621 INFO L226 Difference]: Without dead ends: 2511 [2021-12-14 19:07:43,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-14 19:07:43,628 INFO L933 BasicCegarLoop]: 1265 mSDtfsCounter, 382 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:43,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 3795 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 19:07:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2021-12-14 19:07:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2380. [2021-12-14 19:07:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 1644 states have (on average 1.1922141119221412) internal successors, (1960), 1708 states have internal predecessors, (1960), 516 states have call successors, (516), 198 states have call predecessors, (516), 199 states have return successors, (538), 507 states have call predecessors, (538), 514 states have call successors, (538) [2021-12-14 19:07:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3014 transitions. [2021-12-14 19:07:43,761 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3014 transitions. Word has length 153 [2021-12-14 19:07:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:43,762 INFO L470 AbstractCegarLoop]: Abstraction has 2380 states and 3014 transitions. [2021-12-14 19:07:43,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 19:07:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3014 transitions. [2021-12-14 19:07:43,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-14 19:07:43,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:43,764 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] [2021-12-14 19:07:43,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 19:07:43,765 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:43,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:43,765 INFO L85 PathProgramCache]: Analyzing trace with hash 122768070, now seen corresponding path program 1 times [2021-12-14 19:07:43,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:43,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601185430] [2021-12-14 19:07:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:43,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 19:07:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:07:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 19:07:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 19:07:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:43,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:43,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601185430] [2021-12-14 19:07:43,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601185430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:43,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:43,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:43,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582925603] [2021-12-14 19:07:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:43,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:43,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:43,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:43,950 INFO L87 Difference]: Start difference. First operand 2380 states and 3014 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) [2021-12-14 19:07:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:45,206 INFO L93 Difference]: Finished difference Result 2380 states and 3014 transitions. [2021-12-14 19:07:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:45,207 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 [2021-12-14 19:07:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:45,213 INFO L225 Difference]: With dead ends: 2380 [2021-12-14 19:07:45,214 INFO L226 Difference]: Without dead ends: 2378 [2021-12-14 19:07:45,216 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 [2021-12-14 19:07:45,216 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 1937 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:45,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 2727 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 19:07:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2021-12-14 19:07:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2378. [2021-12-14 19:07:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 1643 states have (on average 1.1911138161898964) internal successors, (1957), 1706 states have internal predecessors, (1957), 516 states have call successors, (516), 198 states have call predecessors, (516), 199 states have return successors, (538), 507 states have call predecessors, (538), 514 states have call successors, (538) [2021-12-14 19:07:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3011 transitions. [2021-12-14 19:07:45,338 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3011 transitions. Word has length 124 [2021-12-14 19:07:45,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:45,339 INFO L470 AbstractCegarLoop]: Abstraction has 2378 states and 3011 transitions. [2021-12-14 19:07:45,339 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) [2021-12-14 19:07:45,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3011 transitions. [2021-12-14 19:07:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-14 19:07:45,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:45,342 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:45,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 19:07:45,342 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:45,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:45,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1434092064, now seen corresponding path program 1 times [2021-12-14 19:07:45,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:45,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667573672] [2021-12-14 19:07:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:45,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:07:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:07:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:07:45,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:45,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667573672] [2021-12-14 19:07:45,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667573672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:45,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:45,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 19:07:45,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225633161] [2021-12-14 19:07:45,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:45,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 19:07:45,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:45,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 19:07:45,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 19:07:45,596 INFO L87 Difference]: Start difference. First operand 2378 states and 3011 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:47,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:47,035 INFO L93 Difference]: Finished difference Result 4861 states and 6208 transitions. [2021-12-14 19:07:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:47,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 154 [2021-12-14 19:07:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:47,045 INFO L225 Difference]: With dead ends: 4861 [2021-12-14 19:07:47,045 INFO L226 Difference]: Without dead ends: 2509 [2021-12-14 19:07:47,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-14 19:07:47,054 INFO L933 BasicCegarLoop]: 1277 mSDtfsCounter, 1453 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 4455 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:47,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 4455 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 19:07:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-12-14 19:07:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2378. [2021-12-14 19:07:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 1643 states have (on average 1.1898965307364577) internal successors, (1955), 1706 states have internal predecessors, (1955), 516 states have call successors, (516), 198 states have call predecessors, (516), 199 states have return successors, (538), 507 states have call predecessors, (538), 514 states have call successors, (538) [2021-12-14 19:07:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3009 transitions. [2021-12-14 19:07:47,187 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3009 transitions. Word has length 154 [2021-12-14 19:07:47,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:47,187 INFO L470 AbstractCegarLoop]: Abstraction has 2378 states and 3009 transitions. [2021-12-14 19:07:47,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3009 transitions. [2021-12-14 19:07:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-14 19:07:47,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:47,190 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:47,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 19:07:47,190 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1434151646, now seen corresponding path program 1 times [2021-12-14 19:07:47,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:47,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009670070] [2021-12-14 19:07:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:47,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:07:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:07:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:07:47,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:47,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009670070] [2021-12-14 19:07:47,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009670070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:47,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:47,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:47,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851237426] [2021-12-14 19:07:47,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:47,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:47,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:47,388 INFO L87 Difference]: Start difference. First operand 2378 states and 3009 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-14 19:07:48,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:48,768 INFO L93 Difference]: Finished difference Result 5760 states and 7567 transitions. [2021-12-14 19:07:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:07:48,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 154 [2021-12-14 19:07:48,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:48,781 INFO L225 Difference]: With dead ends: 5760 [2021-12-14 19:07:48,782 INFO L226 Difference]: Without dead ends: 3408 [2021-12-14 19:07:48,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:07:48,791 INFO L933 BasicCegarLoop]: 1683 mSDtfsCounter, 698 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:48,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [884 Valid, 6406 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 19:07:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2021-12-14 19:07:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 2376. [2021-12-14 19:07:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 1642 states have (on average 1.1875761266747868) internal successors, (1950), 1704 states have internal predecessors, (1950), 516 states have call successors, (516), 198 states have call predecessors, (516), 199 states have return successors, (538), 507 states have call predecessors, (538), 514 states have call successors, (538) [2021-12-14 19:07:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3004 transitions. [2021-12-14 19:07:48,939 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3004 transitions. Word has length 154 [2021-12-14 19:07:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:48,939 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 3004 transitions. [2021-12-14 19:07:48,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-14 19:07:48,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3004 transitions. [2021-12-14 19:07:48,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-14 19:07:48,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:48,943 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:48,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 19:07:48,943 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:48,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash 947038902, now seen corresponding path program 1 times [2021-12-14 19:07:48,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:48,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388729539] [2021-12-14 19:07:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:48,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 19:07:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 19:07:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 19:07:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 19:07:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-12-14 19:07:49,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:49,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388729539] [2021-12-14 19:07:49,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388729539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:49,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:49,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:49,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941416093] [2021-12-14 19:07:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:49,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:49,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:49,191 INFO L87 Difference]: Start difference. First operand 2376 states and 3004 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:07:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:50,208 INFO L93 Difference]: Finished difference Result 2565 states and 3267 transitions. [2021-12-14 19:07:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:50,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2021-12-14 19:07:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:50,216 INFO L225 Difference]: With dead ends: 2565 [2021-12-14 19:07:50,216 INFO L226 Difference]: Without dead ends: 2563 [2021-12-14 19:07:50,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-14 19:07:50,217 INFO L933 BasicCegarLoop]: 1283 mSDtfsCounter, 1401 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:50,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1546 Valid, 3940 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 19:07:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-12-14 19:07:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2428. [2021-12-14 19:07:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1675 states have (on average 1.1838805970149253) internal successors, (1983), 1736 states have internal predecessors, (1983), 524 states have call successors, (524), 210 states have call predecessors, (524), 211 states have return successors, (546), 515 states have call predecessors, (546), 522 states have call successors, (546) [2021-12-14 19:07:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3053 transitions. [2021-12-14 19:07:50,358 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3053 transitions. Word has length 163 [2021-12-14 19:07:50,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:50,358 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 3053 transitions. [2021-12-14 19:07:50,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:07:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3053 transitions. [2021-12-14 19:07:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 19:07:50,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:50,364 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] [2021-12-14 19:07:50,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 19:07:50,364 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1214853457, now seen corresponding path program 1 times [2021-12-14 19:07:50,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:50,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435052467] [2021-12-14 19:07:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:50,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 19:07:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:07:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:07:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:07:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 19:07:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:07:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:07:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:07:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 19:07:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:07:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 19:07:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 19:07:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 19:07:50,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:50,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435052467] [2021-12-14 19:07:50,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435052467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:50,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:50,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:07:50,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768600957] [2021-12-14 19:07:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:50,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:07:50,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:07:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:07:50,554 INFO L87 Difference]: Start difference. First operand 2428 states and 3053 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) [2021-12-14 19:07:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:51,933 INFO L93 Difference]: Finished difference Result 2428 states and 3053 transitions. [2021-12-14 19:07:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:07:51,933 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 [2021-12-14 19:07:51,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:51,941 INFO L225 Difference]: With dead ends: 2428 [2021-12-14 19:07:51,941 INFO L226 Difference]: Without dead ends: 2426 [2021-12-14 19:07:51,942 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 [2021-12-14 19:07:51,942 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 1916 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:51,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2047 Valid, 2720 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 19:07:51,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-12-14 19:07:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2021-12-14 19:07:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1674 states have (on average 1.1827956989247312) internal successors, (1980), 1734 states have internal predecessors, (1980), 524 states have call successors, (524), 210 states have call predecessors, (524), 211 states have return successors, (546), 515 states have call predecessors, (546), 522 states have call successors, (546) [2021-12-14 19:07:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3050 transitions. [2021-12-14 19:07:52,084 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3050 transitions. Word has length 130 [2021-12-14 19:07:52,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:52,084 INFO L470 AbstractCegarLoop]: Abstraction has 2426 states and 3050 transitions. [2021-12-14 19:07:52,085 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) [2021-12-14 19:07:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3050 transitions. [2021-12-14 19:07:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-14 19:07:52,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:52,088 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:52,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 19:07:52,088 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:52,088 INFO L85 PathProgramCache]: Analyzing trace with hash 170865828, now seen corresponding path program 1 times [2021-12-14 19:07:52,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:52,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341657008] [2021-12-14 19:07:52,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:52,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 19:07:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:07:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:07:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:07:52,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:52,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341657008] [2021-12-14 19:07:52,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341657008] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:52,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:52,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 19:07:52,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834261011] [2021-12-14 19:07:52,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:52,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 19:07:52,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:52,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 19:07:52,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 19:07:52,322 INFO L87 Difference]: Start difference. First operand 2426 states and 3050 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:53,011 INFO L93 Difference]: Finished difference Result 4955 states and 6281 transitions. [2021-12-14 19:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 19:07:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2021-12-14 19:07:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:53,022 INFO L225 Difference]: With dead ends: 4955 [2021-12-14 19:07:53,022 INFO L226 Difference]: Without dead ends: 2555 [2021-12-14 19:07:53,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:07:53,030 INFO L933 BasicCegarLoop]: 1263 mSDtfsCounter, 1416 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:53,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 1809 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-14 19:07:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2021-12-14 19:07:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2420. [2021-12-14 19:07:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1669 states have (on average 1.1809466746554824) internal successors, (1971), 1728 states have internal predecessors, (1971), 524 states have call successors, (524), 210 states have call predecessors, (524), 211 states have return successors, (546), 515 states have call predecessors, (546), 522 states have call successors, (546) [2021-12-14 19:07:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3041 transitions. [2021-12-14 19:07:53,159 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3041 transitions. Word has length 158 [2021-12-14 19:07:53,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:53,160 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3041 transitions. [2021-12-14 19:07:53,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:07:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3041 transitions. [2021-12-14 19:07:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-14 19:07:53,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:53,163 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:53,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 19:07:53,164 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_block_request__double_getErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 540967133, now seen corresponding path program 1 times [2021-12-14 19:07:53,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:53,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569530201] [2021-12-14 19:07:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:53,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:07:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:07:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 19:07:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 19:07:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:07:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 19:07:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:07:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:07:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 19:07:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 19:07:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 19:07:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 19:07:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 19:07:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 19:07:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-14 19:07:53,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569530201] [2021-12-14 19:07:53,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569530201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:53,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:53,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 19:07:53,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681949157] [2021-12-14 19:07:53,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:53,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 19:07:53,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:53,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 19:07:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:07:53,422 INFO L87 Difference]: Start difference. First operand 2420 states and 3041 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 19:07:55,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:55,664 INFO L93 Difference]: Finished difference Result 2582 states and 3272 transitions. [2021-12-14 19:07:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 19:07:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2021-12-14 19:07:55,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:55,675 INFO L225 Difference]: With dead ends: 2582 [2021-12-14 19:07:55,676 INFO L226 Difference]: Without dead ends: 2580 [2021-12-14 19:07:55,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-12-14 19:07:55,677 INFO L933 BasicCegarLoop]: 1262 mSDtfsCounter, 2869 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 1453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 3782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1453 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:55,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3016 Valid, 4201 Invalid, 3782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1453 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 19:07:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2021-12-14 19:07:55,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2420. [2021-12-14 19:07:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1669 states have (on average 1.1797483523067704) internal successors, (1969), 1728 states have internal predecessors, (1969), 524 states have call successors, (524), 210 states have call predecessors, (524), 211 states have return successors, (546), 515 states have call predecessors, (546), 522 states have call successors, (546) [2021-12-14 19:07:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3039 transitions. [2021-12-14 19:07:55,835 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3039 transitions. Word has length 162 [2021-12-14 19:07:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:07:55,836 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3039 transitions. [2021-12-14 19:07:55,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 19:07:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3039 transitions. [2021-12-14 19:07:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-14 19:07:55,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:07:55,839 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:07:55,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-14 19:07:55,839 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-12-14 19:07:55,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:07:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash -176985302, now seen corresponding path program 1 times [2021-12-14 19:07:55,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:07:55,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104554543] [2021-12-14 19:07:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:07:55,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:07:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:55,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 19:07:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 19:07:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:07:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:07:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 19:07:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:07:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:07:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:07:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:07:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:07:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 19:07:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:07:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 19:07:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 19:07:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 19:07:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 19:07:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:07:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-14 19:07:56,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:07:56,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104554543] [2021-12-14 19:07:56,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104554543] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:07:56,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:07:56,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-14 19:07:56,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083310856] [2021-12-14 19:07:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:07:56,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 19:07:56,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:07:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 19:07:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-14 19:07:56,152 INFO L87 Difference]: Start difference. First operand 2420 states and 3039 transitions. Second operand has 13 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2021-12-14 19:07:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:07:58,709 INFO L93 Difference]: Finished difference Result 6563 states and 8720 transitions. [2021-12-14 19:07:58,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 19:07:58,709 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 165 [2021-12-14 19:07:58,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:07:58,727 INFO L225 Difference]: With dead ends: 6563 [2021-12-14 19:07:58,728 INFO L226 Difference]: Without dead ends: 4167 [2021-12-14 19:07:58,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2021-12-14 19:07:58,737 INFO L933 BasicCegarLoop]: 2088 mSDtfsCounter, 1425 mSDsluCounter, 17556 mSDsCounter, 0 mSdLazyCounter, 3760 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 19644 SdHoareTripleChecker+Invalid, 4652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 3760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:07:58,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1596 Valid, 19644 Invalid, 4652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 3760 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-14 19:07:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states.